Polaris, Pestilent One

Menace
Horseman —As long as you control Polaris,
Pestilent One, your commander gets +1/+1
and menace.
Sunburst (This enters the battlefield with a charge
counter on it for each color of mana spent to cast it.)
{t}, Remove a charge counter from Polaris: Put
two -1/-1 counters on target creature.