Sephiroth, The Revelation

This spell can't be countered. Opponents
can't gain life.
Infect, Trample, Indestructible, First Strike, Haste.
Sephiroth, The Revelation enters the battlefield with X +1/+1 counters. If X is 10
or more opponents exile all nonland permanents they control and discard their
hand into their graveyard.