Fóros, the Parity

Menace, deathtouch, Lifelink

Whenever a opponent cast a spell, if the amount of mana spent to cast it was more than its mana value, that player gains 1 life.
Whenever you cast cast a spell, if the amount of mana spent to cast it was more than its mana value, you lose 1 life.

At the beginning of each end step, if a opponent gained life this turn and if you lost life this turn, draw a card and create a tapped treasure token.