Regice, Ancient Cold

When Regice, Ancient Cold enters the battlefield,
it starts to hail. (Hailing is a weather effect. Weather effects last until the next turn of the player who placed
the weather effect or until another weather effect is
placed on the battlefield.)
Ice Body — At the beginning of each combat, if
its hailing you may pay {s}. If you do, put a
+1/+1 counter on Regice.
It is impossible for Regice's body to melt.