Council of Reeds is a rare Legendary Creature — Human Scientist Hero card from Marvel Super Heroes Commander (MSC), collector number 28. Current market price: $0.43 (foil $3.46), TCGplayer market prices via Scryfall.
The "legend rule" doesn't apply to creatures you control. At the beginning of combat on your turn, if you've cast a noncreature spell this turn, create a token that's a copy of Council of Reeds.