Forrix, Triarch Primus

Vigilance, first strike
Creatures you control cannot be blocked except by three or more creatures
Creatures you control with power 6 or greater have annihilator 1
Siege Masters: whenever this creature becomes blocked, it gains hexproof, double strike and
trample until end of turn
{x}{x}{w}{u}{b}{t}: X creatures you control are unblockable and X creatures you control must
be blocked if able this turn