S.B.Uwurth, Prism Cartographer

S.B.Uwurth, Prism Cartographer is all colors.
Flash
Creatures you control with power less than
S.B.Uwurth, Prism Cartographer have hexproof.
Whenever S.B.Uwurth, Prism Cartographer
attacks and isn't blocked, put a +1/+1 counter
on it for each creature you control.