Chrome, Mukuro's Vessel

Persist
{2}{u/b},{t}: Put a "Mukuro, Mist Guardian" token
onto the battlefield. Exile it at your next
end step. Chrome, Mukuro's Vessel doesn't
untap at your next untap step.
"You can't think of Chrome and Mukuro as two
separate people, because as Chrome lives, Mukuro
exists. Because Mukuro is here, Chrome can live."
- Reborn, Vongola Tutor