Perturabo

Vigilance, first strike, protection from instants
Siege Masters: whenever a creature you control
becomes blocked, it gains hexproof, double strike
and trample until end of turn
Whenever a creature you control deals combat
damage to a player, you draw a card and they
discard a card
{w}{u}{b}: target creature is unblockable until end of
turn
{3}{w}{u}{b}{t}: creatures you control are unblockable until end of turn