Flesh Prison

{x}{t} Summon {x} Floating Eyes, where {x} is the
number of mana spent, can be done
once per turn.
{r}{r}{t} Sacrifice all Floating Eyes you own,
add a +{x}/+1 counter and regain {x} life,
where {x} is the number of Floating Eyes
sacrificed.
On death, transform into Minos Prime,
exile all of the Owner's Floating Eyes