Quandrix, the Proof [Secrets of Strixhaven]

Description

Set:	Secrets of Strixhaven
Type:	Legendary Creature — Elder Dragon
Rarity:	Mythic
Cost:	{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.