Elephant Grass is a uncommon Enchantment card from Visions (VIS), collector number 104. Current market price: $3.40, TCGplayer market prices via Scryfall.
Cumulative upkeep {1} (At the beginning of your upkeep, put an age counter on this permanent, then sacrifice it unless you pay its upkeep cost for each age counter on it.) Black creatures can't attack you. Nonblack creatures can't attack you unless their controller pays {2} for each creature they control that's attacking you.