Dancing from Dark to Dawn is a mythic Enchantment card from The Hobbit (HOB), collector number 231. Current market price: $6.33 (foil $10.89), TCGplayer market prices via Scryfall.
Whenever you cast a creature spell, put X +1/+1 counters on target creature you control, where X is that spell's mana value. Landfall — Whenever a land you control enters, create a 2/2 green Bear creature token.