Mind Harness is a uncommon Enchantment — Aura card from Mirage (MIR), collector number 78. Current market price: $0.32, TCGplayer market prices via Scryfall.
Enchant red or green creature 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.) You control enchanted creature.