Nimble Trapfinder is a rare Creature — Human Rogue card from Magic Online Promos (PRM), collector number 83744.
This creature can't be blocked if you had another Cleric, Rogue, Warrior, or Wizard enter the battlefield under your control this turn. At the beginning of combat on your turn, if you have a full party, creatures you control gain "Whenever this creature deals combat damage to a player, draw a card" until end of turn.