Forerunner of Destiny

Fury - Whenever Forerunner of Destiny attacks, invigorate 2. (For each creature you control that isn't invigorated, that creature gets +2/+0 until end of turn and becomes invigorated until end of turn.) Then, if creatures you control have total power 15 or more, exile Forerunner of Destiny
and create a legendary 9/9 red Dragon Avatar creature token with flying named Victory that's tapped and attacking.