Runes of the Deus is a common Enchantment — Aura card from Shadowmoor (SHM), collector number 215. Current market price: $0.36 (foil $4.88), TCGplayer market prices via Scryfall.
Enchant creature As long as enchanted creature is red, it gets +1/+1 and has double strike. (It deals both first-strike and regular combat damage.) As long as enchanted creature is green, it gets +1/+1 and has trample.