Tibalt, the Fiend-Blooded 

Legendary Planeswalker — Tibalt
+1: Draw a card, then discard a card at random.
−4: Tibalt deals damage equal to the number of cards in target player's hand to that player.
−6: Gain control of all creatures until end of turn. Untap them. They gain haste until end of turn.
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Cards that do something similar expected a card that isn't here?
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Rowan, Fearless Sparkmage 100%
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"−9: Gain control of all creatures until end of turn. Untap them. They gain haste until end of turn."
Jace, Cunning Castaway 84%
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"+1: Whenever one or more creatures you control deal combat damage to a player this turn, draw a card, then discard a card."
+1 more matching line