My Followers Ascend is a common Scheme card from Duskmourn: House of Horror Commander (DSC), collector number 343. Current market price: $0.36, TCGplayer market prices via Scryfall.
When you set this scheme in motion, put five +1/+1 counters on a creature you control and it gains flying and vigilance until end of turn. If you control no creatures, instead create a 4/4 colorless Scarecrow artifact creature token with vigilance.