Nemesis Prime

First Strike Flying Vigilance Menace

If there is an Autobot or Decepticon on the battlefield, Nemesis Prime is Indestructible.
{t}{b} Destroy target Autobot or target Decepticon.
Whenever an Autobot you or your opponent control dies, Nemesis Prime gets +1/+1.
Whenever a Decepticon you or your opponent control dies, Nemesis Prime gains Deathtouch.