What if Ninetales got Morning Sun?
I mean, it does make perfect sense. Ninetales is known as the bringer of Sun- and its ability pretty much creates massive burst of sunlight throughout the whole field for literally the rest of the match, or at least until something else changes the weather. It's really a wonder why Ninetales didn't get this move which seems to fit so perfectly with it.
Potential set:
Ninetales @ Leftovers
Calm / 252 HP / 4 SpA / 252 SpDef
Will-o-Wisp / Flamethrower / Roar / Morning Sun
Sun is generally regarded as one of the hardest weathers to sustain, disregarding Hail. The existance of Stealth Rock as well as the fact that sweepers from Rain and Sand hit Ninetales for super-effective damage make switching Ninetales in and out a very risky endeavor when facing experienced opponents. Ninetales is the easiest to wear down, as it lacks solid recovery outside of Pain Split and Rest, and is weak to Stealth Rock.
But what if we changed that and gave Ninetales not only Recover but something
better-
Morning Sun? Ninetales's own Sun boosts the recovery of Morning Sun from 50% to
66%- letting Ninetales easily recover itself and shrug off Stealth Rock damage. Morning Sun also makes Ninetales much more competitively viable, letting it tackle top tier special attacking threats such as Lati@s, Keldeo, Alakazam, Starmie, and Thundurus-T with much more ease. Morning Sun would turn Ninetales from "the third wheel" into a Pokemon with viability rivaling that of our current Politoed or Tyranitar.
By making Ninetales last longer, we will be greatly increasing the effectiveness of Sun. Ninetales will be able to switch in to Stealth Rock as many times as it needs, as 1 Morning Sun gives it enough recovery to switch in three more times, factoring in Leftovers recovery. This will make Sun much stronger, and therefore, Sun sweepers will become much more frightening. Pokemon such as Venusaur, Lilligant, and Volcarona will rise in usage, and Rain and Sand will probably fall. Sun will become a weather just as strong as Rain and Sand.
It wouldn't be broken though- as Morning Sun only provides 25% recovery if the weather is changed by switching TTar or Politoed in. Also, Morning Sun only has a measly 8 PP, so it's not as Ninetales can really recover Stall with it. Either way, giving NInetales MOrning Sun would definitely have a significant effect on the metagame.