Yidris, Maelstrom Wielder [C16 - 50]

Trample
Whenever Yidris, Maelstrom Wielder deals combat damage to a player, as you cast spells from your hand this turn, they gain cascade. (When you cast the spell, exile cards from the top of your library until you exile a nonland card that costs less. You may cast it without paying its mana cost. Put the exiled cards on the bottom of your library in a random order.)

Rarity: Mythic

#: 50

Card Type: Legendary, Creature, Legendary Creature — Ogre Wizard

Card Color: B, G, R, U

Casting Cost: {U}{B}{R}{G}