Daemon Prince Angron

Intimidate, Trample, Hexproof
The cost of this card is equal to your actual
number of lifes
As an additional cost to cast this card you
must exile Angron, The Red Butcher from
your battlefield, exile or graveyard
If Angron, The Red Butcher is in battlefield
and has 8 or more rage counters, this card cost {0} instead