Ranger-Captain of Eos is a mythic Creature — Human Soldier Ranger card from The List (PLST), collector number MH1-21. Current market price: $41.10, TCGplayer market prices via Scryfall.
When this creature enters, you may search your library for a creature card with mana value 1 or less, reveal it, put it into your hand, then shuffle. Sacrifice this creature: Your opponents can't cast noncreature spells this turn.