Mukuro, Vindice Breakaway

Menace
Whenever Mukuro, Vindice Breakaway attacks,
gain control of target permanent.
When Mukuro, Vindice Breakaway is put into
the graveyard and if "Mukuro, Mist Guardian"
is in exile, put "Mukuro, Mist Guardian"
onto the battlefield tapped.
{3}{u}{b}: Gain control of target permanent.
"...because I was your opponent."