Mazenok, Unleashed

Mazenok, Unleashed can't be countered.
When you cast Mazenok, Unleashed you may
pay X life, if you do, Mazenok deals X
damage divided among any number of
possible targets.
{0}:Mazenok becomes a copy of target permanent, except it's name is Mazenok, Unleashed, it's legendary in addition to it's other types, and it
has this ability.