Belhifet, Scourge of the North

Lifelink
Ice Dominance — When Belhifet, Scourge of the
North enters the battlefield, if {s}{s}{s}{s}{s} was
paid to cast it, each opponent may choose to be
dealt damage equal to the total power of the
creatures he or she controls. If he or she doesn't,
these creatures fight each other. You get to
choose the target for each fight.
No need for such empty threats. You are alive
in order to witness this historical moment.