Slizzirp, Bio-Master

When Slizzirp, Bio-Master enters the battlefield,
put a 2/2 green Frog creature token onto the
battlefield. Then put either a -1/-1 counter or a
+1/+1 counter on target creature.
{g}{t}: Proliferate.
{u}{t}: Move up to two counters from
a permanent of one type, to another
permanent of the same type.