Whenever you attack, up to one target attacking creature can't be blocked this turn. Return that creature to its owner's hand at the beginning of the next end step. Choose a Background (You can have a Background as a second commander.)

Whenever a nonartifact permanent you control enters, you may return another permanent you control that shares a permanent type with it to its owner's hand.

{3}, {T} or {U}, {T}: Return target creature to its owner's hand unless its controller pays {1}.

Whenever a creature you control becomes blocked, you may return it to its owner's hand.

Trample Whenever you cast a creature spell, put two +1/+1 counters on this creature. If that spell has mana value 5 or greater, this creature deals damage equal to the number of counters on it to each opponent.

Flying Whenever you cast an Adventure spell, you may copy it. You may choose new targets for the copy.

Whenever you cast a spell that's white, blue, black, or red, put a +1/+1 counter on this creature.

Whenever you cast a creature spell that has an Adventure, draw a card. (It doesn't need to have gone on the adventure first.)

Flying Whenever you cast an Adventure spell, draw a card.

When this enchantment enters and whenever you cast a spell with mana value 5 or greater, draw a card.

{T}: Add {C}. Basic landcycling {1} ({1}, Discard this card: Search your library for a basic land card, reveal it, put it into your hand, then shuffle.)

{T}: Add {C}. {T}, Sacrifice this land: Search your library for a basic Forest, Island, or Mountain card, put it onto the battlefield tapped, then shuffle. Cycling {G}{U}{R} ({G}{U}{R}, Discard this card: Draw a card.)

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

{T}: Add {C}. {1}{U}{R}, {T}: Draw a card, then discard a card.

This land enters tapped. As this land enters, choose a color. {T}: Add one mana of the chosen color. {3}, {T}, Sacrifice this land: Return target card that has an Adventure from your graveyard to your hand.

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

{T}: Add {C}. {2}, {T}, Sacrifice this land: Destroy target nonbasic land an opponent controls. Each player searches their library for a basic land card, puts it onto the battlefield, then shuffles.

({T}: Add {G}.)

{T}: Add {C}. {2}, {T}: Each player draws a card, then discards a card.

{T}: Add {C}. {T}, Sacrifice this land: Destroy target land. Its controller may search their library for a basic land card, put it onto the battlefield, then shuffle.

({T}: Add {U}.)

({T}: Add {U} or {R}.) This land enters tapped.

({T}: Add {R}.)

This land enters tapped. When this land enters, exile up to three target cards from graveyards. {T}: Add {C}. {T}: Add one mana of any of the exiled cards' colors.

{T}: Add {C}. {4}, {T}: Target creature can't be blocked this turn.

({T}: Add {G} or {U}.) This land enters tapped.

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

{T}: Add {C}. {3}, {T}: Surveil 1. (Look at the top card of your library. You may put it into your graveyard.)

Flying Whenever you cast an instant or sorcery spell, creatures you control get +1/+0 and gain trample until end of turn.

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

{T}: Add one mana of any color in your commander's color identity. Sacrifice this artifact: Draw a card.

Spells you cast from your graveyard or from exile cost {2} less to cast. Plotting cards from your hand costs {2} less.

{2}, {T}, Sacrifice this artifact: Search your library for a land card, reveal it, put it into your hand, then shuffle.

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

{T}: Add one mana of any color. {2}, {T}: Exile target card from a graveyard.

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

When this creature enters, search your library for a basic land card or Cave card, put it onto the battlefield tapped, then shuffle.

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

When this creature enters, you may search your library for a basic land card, put that card onto the battlefield tapped, then shuffle. When this creature dies, you may draw a card.

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

{T}: Add {C}. {T}: Add {G} or {U}. This artifact deals 1 damage to you.

{T}: Add {C}. {T}: Add {R} or {G}. This artifact deals 1 damage to you.

Descend 4 — When this creature enters, if there are four or more permanent cards in your graveyard, return target permanent card from your graveyard to your hand.

When this creature enters, choose one or more — • Return target card you own in exile that has an Adventure to your hand. • Put target card you don't own in exile that has an Adventure on the bottom of its owner's library. • Exile target player's graveyard.

Devoid (This card has no color.) Whenever you cast a creature spell with mana value 4, 5, or 6, create two 0/1 colorless Eldrazi Spawn creature tokens with "Sacrifice this token: Add {C}." Whenever you cast a creature spell with mana value 7 or greater, draw three cards.

Whenever you cast an instant or sorcery spell, create a 2/2 blue Drake creature token with flying.

Flying, ward {2} Channel — {2}{G}, Discard this card: Return target card from your graveyard to your hand. Channel — {1}{U}, Discard this card: Return target creature to its owner's hand.

{3}, {T}: Target creature you control gets +2/+2 until end of turn. Return it to its owner's hand at the beginning of the next end step. (Return it only if it's on the battlefield.)

When this creature enters, you may return target card from your graveyard to your hand.

When this creature enters, target player shuffles any number of target cards from their graveyard into their library.

When this creature enters, choose target face-up exiled card. Its owner shuffles it into their library.