Frogs are a creature type spread primarily through blue, black, and green, with strategies ranging from lands and graveyards to bouncing creatures and straightforward typal play. Their mechanical identity is appropriately slippery.
Glarb, Calamity's Augur provides top-of-library value, while Pond Prophet replaces itself with a card. Bloomburrow greatly expanded the typal side of Frogs with cards such as Valley Mightcaller and Three Tree Scribe.