Roarfang, Temur Ragebeast

Trample
Ferocius - Roarfang enters the battlefield with
two +1/+1 counters on it, if you control a creature with power 4 or greater.
Formidable - {g}{u}{r}: Roarfang get +2/-2 until
end of turn and then it deals damage equal to its power to target creature you don't control. Activate this ability only if creatures you control have total power 8 or greater.
Roarfang attacks each combat if able.
Nothing could stop her. Not even the Temur self.