Phalancrux, Fist of Doom

Phalancrux, Fist of Doom's power can't be
greater than 0.
{t} Put a +1/+1 counter on Phalancrux, Fist of
Doom
{b}{t} Phalancrux, Fist of Doom deals damage to
target creature equal to that creature's power. Phalancrux, Fist of Doom gets -X/-X until end
of turn where X is that creature's power.