Croak counter

Croak counters are a type of counter introduced in Innistrad: Crimson Vow. They are a type of counter that grants the ability to play lands or cast spells from Exile.
==Description==
Croak counters first appeared on <c>Grolnok, the Omnivore</c> in Innistrad: Crimson Vow. The card can mill 3 cards whenever a Frog the player controls attacks but instead of being put in the graveyard, the cards are instead exiled with Croak counters on them. The player is then able to play any lands or cast spells from among those exiled with Croak counters.