Mastermind Plum

Ward—Discard a card.

Whenever this creature enters or attacks, exile up to one target card from a graveyard. If a creature card was exiled this way, each opponent loses 1 life and you gain 1 life.

Daybound (If a player casts no spells during their own turn, it becomes night next turn.)

Whenever you attack, target creature gains deathtouch until end of turn.

Whenever one or more creatures you control deal combat damage to a player, create a Treasure token, then look at the top card of that player's library and exile it face down. You may cast that card for as long as it remains exiled. (A Treasure token is an artifact with ", Sacrifice this token: Add one mana of any color.")

Flying

Whenever this creature enters or attacks, exile up to one target card from a graveyard. If a creature card is exiled this way, create a Clue token. (It's an artifact with ", Sacrifice this token: Draw a card.")

Whenever you draw your second card each turn, each opponent loses 1 life and you gain 1 life.

Whenever this creature attacks, you may pay 1 life. If you do, create a Treasure token. (It's an artifact with ", Sacrifice this token: Add one mana of any color.")

Firebending 1 (Whenever this creature attacks, add . This mana lasts until end of combat.)

Tap an untapped Ally you control: Exile target card from a graveyard.

Whenever this creature attacks, you may cast an Ally spell from among cards you own exiled with this creature.

Whenever you commit a crime, exile up to one target black card from your graveyard and copy it. You may cast the copy. If you do, you lose 2 life. (Targeting opponents, anything they control, and/or cards in their graveyards is a crime. Copies of permanent spells become tokens.)