Quandrix, the Proof

Legendary Creature — Elder Dragon — {4}{G}{U}

Flying, trample
Cascade (When you cast this 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 in a random order.)
Instant and sorcery spells you cast from your hand have cascade.

Rarity: mythic

EDHREC rank: 7212