Halberd, Knight of Werpo

Red creatures you control get +2/-1
White creatures you control get -1/+2
{r}{r}{r/w}Halberd does damage to any target
equal to the number of red permanents you
control
{w}{w}{r/w}You gain life equal to the number
of White permanents you control
{r/w}{r/w}{r/w}: Halberd gains lifelink and trample until
end of turn