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.
Grolnok, the Omnivore has 4 listed printings; the most valuable is the Prerelease printing from PVOW at US$6.09 on TCGplayer's market price. Prices below are the cheapest in-stock listing in the United States.
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