Whenever another creature you control enters, it gets +2/+0 and gains haste until end of turn. When Enduring Courage dies, if it was a creature, return it to the battlefield under its owner's control. It's an enchantment. (It's not a creature.)

Creature tokens you control get +1/+1 and have vigilance.

First Contact — Whenever Overseer of Vault 76 or another creature you control with power 3 or less enters, put a quest counter on Overseer of Vault 76. At the beginning of combat on your turn, you may remove three quest counters from among permanents you control. When you do, put a +1/+1 counter on each creature you control and they gain vigilance until end of turn.

Offspring {1}{R} (You may pay an additional {1}{R} as you cast this spell. If you do, when this creature enters, create a 1/1 token copy of it.) Whenever another creature you control enters, this creature deals 1 damage to each opponent.

Whenever Arabella attacks, it deals X damage to each opponent and you gain X life, where X is the number of creatures you control with power 2 or less.

Whenever a creature you control enters, this enchantment deals 1 damage to each opponent.

Whenever a creature you control with power 2 or less attacks, this enchantment deals 1 damage to the player or planeswalker that creature is attacking.

When this creature enters, choose one — • Create a 1/1 white Bird creature token with flying. • Return another target nonland permanent to its owner's hand. • Draw a card.

Haste Whenever Arthur and at least one other creature attack, look at the top six cards of your library. You may put a creature card from among them onto the battlefield tapped and attacking. Put the rest on the bottom of your library in a random order. Return that creature to its owner's hand at end of combat.

Flying When this creature enters, scry 3. (Look at the top three cards of your library, then put any number of them on the bottom and the rest on top in any order.)

Whenever a creature you control deals combat damage to a player, you may draw a card. {1}{U}, {T}: Creatures your opponents control attack this turn if able.

Flying You have no maximum hand size. Whenever a creature token you control deals combat damage to a player, draw a card.

Flash Whenever a creature you control deals combat damage to a player, draw a card. When Enduring Curiosity dies, if it was a creature, return it to the battlefield under its owner's control. It's an enchantment. (It's not a creature.)

Lifelink Whenever one or more other creatures you control with power 2 or less enter, draw a card. This ability triggers only once each turn. When Enduring Innocence dies, if it was a creature, return it to the battlefield under its owner's control. It's an enchantment. (It's not a creature.)

Flying When this creature enters, you gain 1 life and draw a card.

Draw a card for each attacking creature.

This spell costs {1} less to cast for each creature that attacked this turn. Draw three cards.

When this creature enters, draw a card.

If this creature hasn't been exerted this turn, you may exert it as it attacks. When you do, untap all other creatures you control and after this phase, there is an additional combat phase. (An exerted creature won't untap during your next untap step.)

Trample, haste Alliance — Whenever another creature you control enters, double this creature's power until end of turn.

Spree (Choose one or more additional costs.) + {2}{R} — Untap all creatures you control. If it's your combat phase, there is an additional combat phase after this phase. + {2} — Creatures you control get +1/+0 and gain first strike until end of turn. + {R} — Choose target opponent. Whenever a creature you control deals combat damage to that player this turn, create a tapped Treasure token.

{T}: Add {C}. {T}: Add {W} or {U}. This land deals 1 damage to you.

{T}: Add {C}. {T}: Add {R} or {W}. This land deals 1 damage to you.

{T}: Add {C}. {U/R}, {T}: Add {U}{U}, {U}{R}, or {R}{R}.

This land enters tapped unless you control a Plains. {T}: Add {W}. {2}{W}{W}, {T}: Create a 1/1 white Human creature token.

This land enters tapped unless you control a Mountain or a Plains. {T}: Add {R} or {W}.

{T}: Add one mana of any color in your commander's color identity.

{T}, Sacrifice this land: Search your library for a basic land card, put it onto the battlefield tapped, then shuffle.

{T}: Add one mana of any color that a land an opponent controls could produce.

{1}, {T}: Add {U}{R}.

This land enters tapped unless you control a Plains or an Island. {T}: Add {W} or {U}.

({T}: Add {U}.)

({T}: Add {R}.)

This land enters tapped. {T}: Add {U}, {R}, or {W}.

This land enters tapped. {T}: Add one mana of any color in your commander's color identity. When that mana is spent to cast a creature spell that shares a creature type with your commander, scry 1. (Look at the top card of your library. You may put that card on the bottom.)

({T}: Add {W}.)

{T}: Add {C}. {R/W}, {T}: Add {R}{R}, {R}{W}, or {W}{W}.

This land enters tapped unless you control two or fewer other lands. {T}: Add {W} or {U}.

{T}: Add {C}. {T}: Add {U} or {R}. This land deals 1 damage to you.

{1}, {T}: Add {W}{U}.

This land enters tapped unless you control an Island or a Mountain. {T}: Add {U} or {R}.

{1}, {T}: Add {R}{W}.

This land enters tapped. When this land enters, scry 1. (Look at the top card of your library. You may put that card on the bottom.) {T}: Add {W} or {U}.

This land enters tapped. When this land enters, scry 1. (Look at the top card of your library. You may put that card on the bottom.) {T}: Add {U} or {R}.

This land enters tapped. When this land enters, scry 1. (Look at the top card of your library. You may put that card on the bottom.) {T}: Add {R} or {W}.

{T}, Sacrifice this land: Search your library for a basic land card, put it onto the battlefield tapped, then shuffle.

This land enters tapped. As it enters, choose a color other than red. {T}: Add {R} or one mana of the chosen color.

This land enters tapped. As it enters, choose a color other than white. {T}: Add {W} or one mana of the chosen color.

Populate. Creatures you control gain indestructible until end of turn. (To populate, create a token that's a copy of a creature token you control.)

{T}: Add one mana of any color in your commander's color identity.

{1}, {T}: Add {W}{U}.

{1}, {T}: Add {R}{W}.

Flying When this creature enters, untap up to two lands. Cycling {2} ({2}, Discard this card: Draw a card.)

{T}: Add one mana of any color that a land an opponent controls could produce.

{1}, {T}: Add {U}{R}.

Vigilance When this creature enters, if an opponent controls more lands than you, search your library for a basic Plains card, put it onto the battlefield tapped, then shuffle.

{T}: Add {C}. {1}, {T}, Sacrifice this artifact: Draw a card.

Flying {T}: Add one mana of any color.

Alliance — Whenever another creature you control enters, create a Treasure token if this is the first or second time this ability has resolved this turn. Otherwise, you may pay {X}. When you do, this creature deals X damage to any target.

{T}: Add {C}{C}.

Return all creature cards with mana value 2 or less from your graveyard to the battlefield.

Convoke (Your creatures can help cast this spell. Each creature you tap while casting this spell pays for {1} or one mana of that creature's color.) Calamity of Cinders deals 6 damage to each untapped creature.

Destroy all creatures with power greater than target creature's power.

When this creature enters, you may exile another target creature. When this creature leaves the battlefield, return the exiled card to the battlefield under its owner's control.

Flying Sacrifice this creature: Counter target instant or sorcery spell unless its controller pays {1}.

Affinity for tokens (This spell costs {1} less to cast for each token you control.) Whenever a token you control enters, tap target nonland permanent an opponent controls. It doesn't untap during its controller's next untap step.

Choose two — • Return target creature card with mana value 2 or less from your graveyard to the battlefield. • You gain 4 life. • Counter target creature spell. • Draw a card.

Exile target creature. Its controller may search their library for a basic land card, put that card onto the battlefield tapped, then shuffle.

This creature enters with a number of +1/+1 counters on it equal to one plus the number of other creatures you control. Alliance — Whenever another creature you control enters, put a +1/+1 counter on this creature. When this creature dies, create a 1/1 green and white Citizen creature token for each +1/+1 counter on it.

Creature tokens you control have haste. At the beginning of combat on your turn, create a 2/1 blue Phyrexian Myr artifact creature token. Then you may choose a token you control. If you do, each other token you control becomes a copy of that token.

Fabricate 1 (When this creature enters, put a +1/+1 counter on it or create a 1/1 colorless Servo artifact creature token.) Other nontoken creatures you control have fabricate 1. {2}, {T}: Choose one — • Populate. • Proliferate.

Creature tokens you control have menace. Whenever you attack a player, choose target nontoken creature that's attacking that player. Create a token that's a copy of that creature, except it's 1/1. The token enters tapped and attacking that player. Sacrifice it at the beginning of the next end step.

+1: Create three 1/1 white Soldier creature tokens. −3: Destroy all creatures with power 4 or greater. −7: You get an emblem with "Creatures you control get +2/+2 and have flying."

Ravenous (This creature enters with X +1/+1 counters on it. If X is 5 or more, draw a card when it enters.) Whenever this creature attacks, create a number of 1/1 white Rabbit creature tokens equal to this creature's power.

Flash (You may cast this spell any time you could cast an instant.) When this creature enters, create a 1/1 white Soldier creature token.