Sacrifice a creature: Add {C}{C}.

At the beginning of your upkeep, if an opponent controls more lands than you, you may search your library for up to three basic land cards, reveal them, put them into your hand, then shuffle.

As this artifact enters, choose a creature type. Creatures you control of the chosen type get +1/+1. {T}: Add one mana of any color.

White spells you cast cost {1} less to cast.

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

Creatures you control with power 2 or less can't be blocked by creatures with power 3 or greater. If an ability of a creature you control with power 2 or less triggers, that ability triggers an additional time.

Changeling (This card is every creature type.) {X}: Until end of turn, creatures you control have base power and toughness X/X and gain all creature types.

As this land enters, choose a creature type. {T}: Add {C}. {T}: Add one mana of any color. Spend this mana only to cast a creature spell of the chosen type, and that spell can't be countered.

This land enters tapped. At the beginning of your upkeep, if you control seven or more Plains, you may return target creature card from your graveyard to the battlefield. {T}: Add {W}.

{T}: Add {C}. {1}{W}, {T}: Put target enchantment card from your graveyard on top of your library.

{T}: Add {C}. {2}, {T}: Choose a color. Add an amount of mana of that color equal to your devotion to that color. (Your devotion to a color is the number of mana symbols of that color in the mana costs of permanents you control.)

({T}: Add {W}.)

You have no maximum hand size. {T}: Add {C}.

Return all creature and planeswalker cards with mana value X or less from your graveyard to the battlefield. Exile Ascend from Avernus.

Gift a card (You may promise an opponent a gift as you cast this spell. If you do, they draw a card before its other effects.) Return up to two target creature cards each with mana value 2 or less from your graveyard to the battlefield. If the gift was promised, instead return up to three target creature cards each with mana value 2 or less from your graveyard to the battlefield.

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

Whenever a nontoken creature you control dies, you may search your library for a card with the same name as that creature, reveal it, put it into your hand, then shuffle.

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

Return target permanent card with mana value 3 or less from your graveyard to the battlefield. If this spell was cast from a graveyard, you may copy this spell and may choose a new target for the copy. Flashback {4}{W} (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Exile any number of creatures you control, then return them to the battlefield under their owner's control. Then repeat this process X more times.

Exile target creature you control, then return that card to the battlefield under your control.

Exile any number of target creatures you control. Return those cards to the battlefield under their owner's control at the beginning of the next end step.

Exile target creature you control, then return it to the battlefield under its owner's control. Rebound (If you cast this spell from your hand, exile it as it resolves. At the beginning of your next upkeep, you may cast this card from exile without paying its mana cost.)

Exile target nontoken permanent, then return it to the battlefield under its owner's control.

Whenever a player casts a spell, that player gains X life, where X is the number of cards in all graveyards with the same name as that spell.

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

Exile target creature. Its controller gains life equal to its power.

Destroy all creatures with power 3 or greater. Then create a Food token for each creature you control. (It's an artifact with "{2}, {T}, Sacrifice this token: You gain 3 life.")

You may look at the top card of your library any time. Once each turn, you may cast a creature spell with power 2 or less from the top of your library.

(Gain the next level as a sorcery to add its ability.) Whenever one or more tokens you control enter, draw a card. This ability triggers only once each turn. {W}: Level 2 When this Class becomes level 2, create a token that's a copy of target token you control. {3}{W}: Level 3 Creature tokens you control get +2/+2.

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.)

Equipped creature gets +1/-1. Whenever equipped creature dies, draw two cards. Equip {1}

Whenever one or more creatures you control with mana value 3 or less enter, draw a card. This ability triggers only once each turn.

If an opponent would begin an extra turn, that player skips that turn instead. Whenever an opponent attacks you with two or more creatures, draws their second card each turn, or casts their second spell each turn, you draw a card.

Choose a color. White creatures you control gain protection from the chosen color until end of turn.

Creatures you control get +1/+1 and have flying and indestructible. At the beginning of your upkeep, sacrifice a creature. If you can't, sacrifice this artifact.