Blade of Blood and Tears

Blade of Blood and Tears enters the battlefield
with X blood counters.
{x}: Remove X blood counters. Until end of turn,
Blade of Blood and Tears gains lifesteal and
becomes a Weapon equipped to you, with wield
damage 2*X and two attack counters and "When
this weapon deals damage to an opponent, add
X blood counters, where X is the amount of
damage dealt".