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Ice loses its weakness to rock and rock resists ice
A 10% boost of all stats but hp in hail
Ice Body weakens the power of super effective moves by 1/4 in hail
Snow Warning can now be stacked by the user with Hail
Pokemon to get snow warning: Delibird, Uxie, Stantler, mega villinuxe(please) and glaceon
Hidden Amorous is released
Mega Jynx and Beartic
Freeze immunity
Thick fat users dont take hail damage