The Mycosynth Gardens is a rare Land — Sphere card from Edge of Eternities Commander (EOC), collector number 168. Current market price: $0.40, TCGplayer market prices via Scryfall.
{T}: Add {C}. {1}, {T}: Add one mana of any color. {X}, {T}: This land becomes a copy of target nontoken artifact you control with mana value X.