Araña, Heart of the Spider is a rare Legendary Creature — Spider Human Hero card from Through the Omenpaths (OM1), collector number 138.
Whenever you attack, put a +1/+1 counter on target attacking creature. Whenever a modified creature you control deals combat damage to a player, exile the top card of your library. You may play that card this turn. (Equipment, Auras you control, and counters are modifications.)