Grolnok, the Omnivore (Showcase) [VOW - 324]

Whenever a Frog you control attacks, mill three cards.
Whenever a permanent card is put into your graveyard from your library, exile it with a croak counter on it.
You may play lands and cast spells from among cards you own in exile with croak counters on them.

Rarity: Rare

#: 324

Card Type: Legendary, Creature, Legendary Creature — Frog

Card Color: G, U

Casting Cost: {2}{G}{U}