TT-88, The Forbidden One

TT-88, The Forbidden One has power and
toughness equal to triple the amount of
permanents you control.
At the beginning of your endstep.
Deal X damage to target creature or
planeswalker where X is TT-88, The
Forbidden One's power.
If TT-88, The Forbidden One wouldn't be
cast by it's owner, the caster loses 20 life.