Ancient Duel

Target creature you control gets +X/+X until
end of turn. Target opponent chooses a creature
they control. Those creatures fight.
Will of the Council - Starting with you, each
player votes for Good or Evil.
Good - {p/u}{x}: Your target creature gets
+X/+X until end of turn
Evil - {p/r}{x}: Opponents creature gets
+X/+X until end of turn
The losing creatures controller sacrifices
all non-land permanents they control.