Mist-Syndicate Naga is a rare Creature — Snake Ninja card from Modern Horizons (MH1), collector number 58. Current market price: $2.63 (foil $7.59), TCGplayer market prices via Scryfall.
Ninjutsu {2}{U} ({2}{U}, Return an unblocked attacker you control to hand: Put this card onto the battlefield from your hand tapped and attacking.) Whenever this creature deals combat damage to a player, create a token that's a copy of this creature.