Glarb, Calamity's Augur is a mythic Legendary Creature — Frog Wizard Noble card from Bloomburrow Promos (PBLB), collector number 215p. Current market price: $8.97 (foil $11.99), TCGplayer market prices via Scryfall.
Deathtouch You may look at the top card of your library any time. You may play lands and cast spells with mana value 4 or greater from the top of your library. {T}: Surveil 2.