Changeling (This card is every creature type.) {T}: Target creature gains all creature types until end of turn. {T}: Target creature loses all creature types until end of turn.

Sliver creatures you control have double strike. (They deal both first-strike and regular combat damage.)

Whenever a Sliver deals combat damage to a player, its controller may create a 1/1 colorless Sliver creature token.

All Slivers have "Sacrifice this permanent: You gain 3 life."

Whenever a Sliver deals damage, its controller gains that much life.

({T}: Add {G}.)

All Sliver creatures have "Whenever this creature is dealt damage, put a +1/+1 counter on it." (It must survive the damage to get the counter.)

All Sliver creatures have double strike.

All Sliver creatures have haste.

All Sliver creatures have trample.

({T}: Add {U}.)

Sliver creatures you control have first strike.

Whenever a Sliver you control attacks, defending player loses 1 life.

All Slivers have "{T}: Target Sliver creature gets +X/+0 until end of turn, where X is the number of Slivers on the battlefield."

Sliver creatures you control get +3/+3.

All Slivers have "{2}, Sacrifice this permanent: Draw a card."

({T}: Add {R}.)

All Sliver creatures get +1/+1.

({T}: Add {W}.)

All Sliver creatures have flying. All Slivers have "If this permanent would be put into a graveyard, you may put it on top of its owner's library instead."

Sliver creatures you control have "When this creature enters, Slivers you control get +1/+1 until end of turn if you're the monarch. Otherwise, you become the monarch."

All Sliver creatures get +1/+1.

All Sliver creatures get +1/+1 for each other Sliver on the battlefield.

{3}: Search your library for a Sliver card, reveal that card, put it into your hand, then shuffle. {3}: Gain control of target Sliver. (This effect lasts indefinitely.)

{2}: Create a 1/1 colorless Sliver creature token.

Sliver creatures you control have "Whenever this creature is dealt damage, it deals that much damage to target player or planeswalker."

Sliver creatures you control have first strike. (They deal combat damage before creatures without first strike.)

({T}: Add {B}.)

Sliver creatures you control have lifelink. (Damage dealt by a Sliver creature you control also causes you to gain that much life.)

Flying Whenever another permanent you control enters, look at the top card of your library. If it shares a card type with that permanent, you may reveal that card and put it into your hand.

Flying Whenever this creature deals combat damage to a player, roll a d20. When you do, put X +1/+1 counters on each of up to two target creatures, where X is the result.

Flying Whenever this creature deals combat damage to a player, roll a d20. You create a number of Treasure tokens equal to the result.

Flying Whenever this creature deals combat damage to a player, roll a d20. Draw cards equal to the result. You have no maximum hand size for the rest of the game.

Flying Whenever this creature deals combat damage to a player, it deals that much damage to each creature that player controls.

Flying At the beginning of your end step, exile the top card of each opponent's library. You may play those cards for as long as they remain exiled. If you cast a spell this way, you may spend mana as though it were mana of any color to cast it. Whenever a nonland permanent an opponent owns enters the battlefield under your control, they lose life equal to its mana value.

This spell costs {X} less to cast, where X is the greatest number of artifacts an opponent controls. Flying, trample, haste Whenever this creature deals combat damage to a player, you create a Treasure token for each artifact that player controls.

Flying Whenever this creature deals combat damage to a player, each player discards their hand, then draws seven cards.

Trample Whenever a source you control deals 5 or more damage to a player, draw a card.

({T}: Add {G}.)

Flying Whenever Ganax or another Dragon you control enters, create a Treasure token. (It's an artifact with "{T}, Sacrifice this token: Add one mana of any color.") Choose a Background (You can have a Background as a second commander.)

({T}: Add {U}.)

Flying Whenever another nontoken Dragon you control enters, create a 5/5 red Dragon creature token with flying. {1}{R}: Dragons you control get +1/+0 until end of turn.

Flying, ward {2} Whenever another nontoken Dragon you control enters, create a token that's a copy of it, except the token isn't legendary.

({T}: Add {R}.)

Flying Whenever a creature you control deals combat damage to a player, create that many Treasure tokens.

({T}: Add {W}.)

Flying Whenever you cast a spell, put a +1/+1 counter on Ramos for each of that spell's colors. Remove five +1/+1 counters from Ramos: Add {W}{W}{U}{U}{B}{B}{R}{R}{G}{G}. Activate only once each turn.

Flying, ward {2} Other Dragons you control have ward {2}. At the beginning of your end step, if a creature or planeswalker an opponent controlled was dealt excess damage this turn, create a 4/4 red Dragon creature token with flying.

Flying Whenever a Dragon you control becomes the target of a spell or ability an opponent controls, destroy target nonland permanent that player controls.

Flying Infect (This creature deals damage to creatures in the form of -1/-1 counters and to players in the form of poison counters.) {B}: Skithiryx gains haste until end of turn. {B}{B}: Regenerate Skithiryx.

Flying Whenever an opponent casts a spell, put a +1/+1 counter on this creature and you gain 1 life.

({T}: Add {B}.)

Flying Whenever Teneb deals combat damage to a player, you may pay {2}{B}. If you do, put target creature card from a graveyard onto the battlefield under your control.

Flying Spells your opponents cast that target this creature cost an additional 3 life to cast. Whenever another creature you control enters, this creature deals damage equal to that creature's power to any target.

Eminence — As long as The Ur-Dragon is in the command zone or on the battlefield, other Dragon spells you cast cost {1} less to cast. Flying Whenever one or more Dragons you control attack, draw that many cards, then you may put a permanent card from your hand onto the battlefield.

Flying When Tiamat enters, if you cast it, search your library for up to five Dragon cards not named Tiamat that each have different names, reveal them, put them into your hand, then shuffle.

Timeless Lotus enters tapped. {T}: Add {W}{U}{B}{R}{G}.

Flying Whenever a Dragon you control attacks, create a 6/6 red Dragon creature token with flying.

Defender; reach (This creature can block creatures with flying.) Whenever this creature blocks a creature, return that creature to its owner's hand at end of combat.

Defender (This creature can't attack.) Flying When this creature blocks, it becomes a Bird Giant, and it loses defender. (It's no longer a Wall. This effect lasts indefinitely.)

Defender {2}: This creature gains indestructible until end of turn. (Damage and effects that say "destroy" don't destroy it.)

Flying, vigilance Whenever a creature you control with defender enters, draw a card. Each creature you control with defender assigns combat damage equal to its toughness rather than its power and can attack as though it didn't have defender.

Creatures you control have vigilance. Each creature you control can block an additional creature each combat.

Defender {T}: Creatures you control gain haste until end of turn.

All Sliver creatures have defender. All Slivers have "When this permanent enters, draw a card."

Defender (This creature can't attack.) Flying Prevent all combat damage that would be dealt to and dealt by this creature.

({T}: Add {G}.)

Defender When this creature enters, you may search your library for a basic land card or a Gate card, reveal it, put it into your hand, then shuffle.

Defender (This creature can't attack.)

Each creature you control assigns combat damage equal to its toughness rather than its power. Creatures you control can attack as though they didn't have defender. {2}{W}{U}: Untap target creature.

({T}: Add {U}.)

This creature has defender as long as it's a Wall. {1}: This creature becomes the creature type of your choice until end of turn.

({T}: Add {R}.)

Defender {T}: Add {G} for each creature you control with defender.

({T}: Add {W}.)

Flying, defender As Pramikon enters, choose left or right. Each player may attack only the nearest opponent in the chosen direction and planeswalkers controlled by that opponent.

Destroy all creatures with power 4 or greater. They can't be regenerated.

Defender Whenever this creature blocks, put a -0/-1 counter on it.

Defender (This creature can't attack.) Green spells and blue spells you cast cost {1} less to cast.

Defender {2}: Until end of turn, target creature with defender gains haste, can attack as though it didn't have defender, and assigns combat damage equal to its toughness rather than its power. Activate only as a sorcery.

Defender, flying Shroud (This creature can't be the target of spells or abilities.)

Defender (This creature can't attack.) This creature can block any number of creatures.

Defender (This creature can't attack.) At end of combat, exile all creatures blocked by this creature. When this creature leaves the battlefield, return all cards exiled with it to the battlefield under their owners' control.

Defender (This creature can't attack.) Whenever this creature is dealt combat damage, it deals that much damage to target opponent or planeswalker.

You may have this creature enter as a copy of any creature on the battlefield, except it's a Wall in addition to its other types and has defender. When you do, tap the copied creature and it doesn't untap during its controller's untap step for as long as you control this creature.

Defender (This creature can't attack.) Whenever this creature blocks a creature, return that creature to its owner's hand at end of combat.

Deathtouch Whenever this creature enters or attacks, mill two cards, then incubate X, where X is the number of creature cards in your graveyard. (Create an Incubator token with X +1/+1 counters on it and "{2}: Transform this token." It transforms into a 0/0 Phyrexian artifact creature.)

Lifelink {R}, {T}, Sacrifice another creature: Brion Stoutarm deals damage equal to the sacrificed creature's power to target player or planeswalker.

Choose a Giant creature you control. It deals damage equal to its power to target creature.

When this creature enters, if you cast it from your hand, return all permanents to their owners' hands except for Giants, Wizards, and lands.

Trample When this creature enters, other creatures you control get +3/+3 and gain trample until end of turn.

Enthralling Performance — When this creature enters, gain control of target creature you don't control until end of turn. Untap it. It gains haste and myriad until end of turn. (Whenever it attacks, for each opponent other than defending player, you may create a token copy that's tapped and attacking that player or a planeswalker they control. Exile the tokens at end of combat.)

({T}: Add {G}.)

When this creature enters, other creatures you control gain "{T}: This creature deals 2 damage to any target" until end of turn. Persist (When this creature dies, if it had no -1/-1 counters on it, return it to the battlefield under its owner's control with a -1/-1 counter on it.)

When this creature enters, you may search your library for a Giant card, reveal it, then shuffle and put that card on top.

Whenever another creature enters, you may put X +1/+1 counters on this creature, where X is that creature's power.

Whenever Jareth blocks, it gets +7/+7 until end of turn. {W}: Jareth gains protection from the color of your choice until end of turn.

Vigilance, menace, lifelink Whenever Kroxa and Kunoros enters or attacks, you may exile five cards from your graveyard. When you do, return target creature card from your graveyard to the battlefield.

({T}: Add {R}.)