Primordial Gnawer
From The Lost Caverns of Ixalan set
Primordial Gnawer
Creature — Insect Horror
5/2
When this creature dies, discover 3. (Exile cards from the top of your library until you exile a nonland card with mana value 3 or less. Cast it without paying its mana cost or put it into your hand. Put the rest on the bottom in a random order.)