Krosan Adaptation is a rare Enchantment — Aura card from Mystery Booster Playtest Cards 2019 (CMB1), collector number 80. Current market price: $2.68, TCGplayer market prices via Scryfall.
Enchant creature Storm (When you cast this spell, copy it for each spell cast before it this turn. You may choose new targets for the copies. The copies enter as tokens.) Enchanted creature gets +1/+0 and has vigilance.