Colonel Autumn is a rare Legendary Creature — Human Soldier card from Fallout (PIP), collector number 411. Current market price: $0.50 (foil $0.57), TCGplayer market prices via Scryfall.
Lifelink Exploit (When this creature enters, you may sacrifice a creature.) Other legendary creatures you control have exploit. Whenever a creature you control exploits a creature, put a +1/+1 counter on each creature you control.