Zagoth Triome is a rare Land — Swamp Forest Island card from Ikoria: Lair of Behemoths Promos (PIKO), collector number 259p. Current market price: $23.57 (foil $24.72), TCGplayer market prices via Scryfall.
({T}: Add {B}, {G}, or {U}.) This land enters tapped. Cycling {3} ({3}, Discard this card: Draw a card.)