New Horizons is a common Enchantment — Aura card from Warhammer 40,000 Commander (40K), collector number 218. Current market price: $0.31, TCGplayer market prices via Scryfall.
Enchant land When this Aura enters, put a +1/+1 counter on target creature you control. Enchanted land has "{T}: Add two mana of any one color."