Ok, on Ferrothorn you may want to consider Power Whip > Protect, as you now have a way to hit Tapu Fini and other countless bulky water types (Slowbro, Alomomola, Suicune, etc.) that make Gyarados' and Charizard's sweep harder.
Timid > Modest on Tapu Lele. You hit stupidly hard even without a...