Sunderbark Scion

Sunderbark Scion enters the battlefield with a +1/+1 counter on it, if you control another creature with a +1/+1 counter on it.
Whenever Sunderbark Scion attacks, each other creature you control gets +X/+X until end of turn, where X is equal to the number of other creatures you control with power 4 or greater.
The only rule in the wild is to respect the strong; the wild is unforgiving of transgressors.