Ente, Breaker of Souls

Ente, Breaker of Souls' toughness is infinite.
Flying, ward {x},
where X is one more than the number of
mana that player could produce,
indestructible, annihilator X,
where X is one less than the number of
permanents defending player controls.
{t}: Target opponent loses X life,
where X is one less than their life total.