Sword of Unholy power

Equipped creature gets +4/+1 and has lifelink
Whenever any player lose life equipped creature
gain +3/+0 until end of turn.
{3}{b}:Target opponent lose 1 life
Equip {3} ({3}: Attach to target creature you
control. Equip only as a sorcery.)
Whenever this blade tastes blood, its wielder seems to
exert greater control over the Winds of Magic.