Sephiroth, Jenova Host

Flash, double strike, flying, haste, menace, shroud, trample, undying
Multistrike X—Remove a +1/+1 counter from this creature and deal X damage to each opponent.
If you can’t, you may have Sephiroth, Jenova Host become
a copy of target creature. It gains your choice of monstrosity X or undying and is an unknown illusion In addition to the copied creature’s types. (During any combat phase, this creature dealt damage to at least X opponents and/or permanents they control. X can’t be 0. Mult