Mount Velus Manticore is a common Enchantment Creature — Manticore card from Modern Horizons 2 (MH2), collector number 136. Current market price: $0.07 (foil $0.06), TCGplayer market prices via Scryfall.
At the beginning of combat on your turn, you may discard a card. When you do, this creature deals X damage to any target, where X is the number of card types the discarded card has.