Bloody Vendetta

{t}: Destroy target creature. Place a feud counter
on Bloody Vendetta, and that creature's
controller gains control of Blood Vendetta.
Activate this ability only any time you could cast
a sorcery.
When Blood Vendetta has four feud counters,
sacrifice it.
"And the continuance of their parents' rage,
Which, but their children's end, naught could remove"
-William Shakespeare