Ice Defense buff:
-Normal to fighting
-Immune to water
Hail buff:
-buff defense in the same way rock buffed spd, as in +1
-SR is frozen when its out so no pointed stones, Snow Warning won't stop a 1st hitting SR though.
-Hurricane is 100% accurate in hail as long as an ice type is using it, 100% accurate in Sun as long as a fire type is using it, 100% accurate in sand as long as a ground/rock type is using it, with a 40% chance to confuse now just in general
Rock Defense buff:
-resists itself now
Normal Defense buff:
-Any duel type pokemon lose the fighting weakness but keep the ghost immunity
What this does to:
Articuno:
-resist fighting, bug, grass, immune to ground, water
-weak to electric, fire, 4x rock
-given snow warning as well because why not?
Mamoswine:
-only weak to grass, steel. 1 weakpoint became a neutral, another became an immunity
Aerodactyl:
-doesn't take 25% from SR anymore
Aurorus:
-weakness becomes immunity, another weakness becomes neutral, 1 of its 4x weakness brought down to 2x.
List of plus goes on.