Parallax Dementia is a common Enchantment — Aura card from Nemesis (NEM), collector number 62. Current market price: $0.07 (foil $1.00), TCGplayer market prices via Scryfall.
Enchant creature Fading 1 (This enchantment enters with one fade counter on it. At the beginning of your upkeep, remove a fade counter from it. If you can't, sacrifice it.) Enchanted creature gets +3/+2. When this Aura leaves the battlefield, destroy enchanted creature. That creature can't be regenerated.