Grolnok, the Omnivore (Showcase)

Set: Innistrad: Crimson Vow (#324)

Rarity: Rare

Type: Legendary Creature — Frog

Mana Cost: {2}{G}{U}

Colors: Green, Blue

P/T: 3/3

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.