Relinquished

{0}: Put an eye counter on target creature an
opponent controls. That creature phases out.
Relinquished becomes a copy of that creature
for as long as it has an eye counter on it. If
relinquished would die, if there's an eye counter
on a phased out creature, remove that counter
instead. The next time you use this ability,
remove the eye counter and that creature
phases back in. Activate this ability only
once each turn.