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Hyper Fang:
Base power increased to 90
Now supereffective against Grass, Rock, and Steel-Type Pokemon
Acid and Acid Spray:
Now supereffective against Steel, instead of immune
Stealth Rocks:
No longer does type-based damage. Now does the damage equivalent to two layers of Spikes. Spikes and Stealth Rock effects cannot stack
Earth Power:
Now available to most Grass-Types and some Fire-Types, similar to Ice Beam/Blizzard on Water-Types
Magma Armor:
Gives immunity to Ice-Type moves
Steadfast:
Gives immunity to flinching, in addition to it's already existing effect
Run Away:
Now enables the Pokemon to escape from Arena Trap/Shadow Tag/Magnet Pull and flee-preventing moves such as Mean Look, Block, ect