Embodiment of Insight is a uncommon Creature — Elemental card from Oath of the Gatewatch (OGW), collector number 131. Current market price: $0.21 (foil $1.29), TCGplayer market prices via Scryfall.
Vigilance Land creatures you control have vigilance. Landfall — Whenever a land you control enters, you may have target land you control become a 3/3 Elemental creature with haste until end of turn. It's still a land.