Ixis, Iridescent Oilslick

When Ixis, Iridescent Oilslick enters the battlefield, move all -1/-1 counters and +1/+1 counters onto it.
{1}{g/u}: Put a +1/+1 counter on target creature.
{1}{b/r}: Put a -1/-1 counter on target creature.
It was born from the potion addled minds of mad wizards, when it leaked out of their ears.