you have to have beaten dialga at temporal tower first. then wigglytuff will say that you can graduate by going to mystifying forest and getting the treasure (which is obviously a perfect apple)
Even though I haven't played sky, I would imagine you graduate from the guild and get10,000P WOOT!
Once you graduate from wigglytuff's guild you will live in the hollow chamber in shapedo cliff
You have to beat the game then after the credits and after you graduate from the guild, you can do sentry duty when ever you want.
Guild Master Rank
you have to graduate from the guild
Easy! What you have to do is this. First, you have to beat dialga. You HAVE to. Second, once you return to the guild, they will talk about how you will graduate from the guild if you beat the grand master of all things bad. Chatot and the guild members and leader (sorry forgot how to spell name) will tell you where to go and what else to do. And if you beat the grand master of all things bad, then you will graduate from the guild! (P.S. the grandmaster of all things bad also has helpers. Well that means that you will have to battle not just one pokemon, but at least about 9 pokemon) I already graduated from the guild.
Probably.... Because You Haven't Beat Wigglytuff And the Guild In Battle. You have to Fully Graduate To This. Either That Or There Is A Glitch.
Graduate from the guild and recruit palkia in spacial rift
Defeat all the guild Pokemon in something like mystifying forest
You evolve when you beat dialga and also when you beat darkari and graduate from the guild
you go to luminous spring to get treasure. BEWARE you battle the whole guild on the way there its pretty hard.
you have to defeat him again after graduating from the guild and he will join you