Greetings, my fellow Aegislash enthusiasts. So nice to see so much love for an awesome Pokémon.
I find myself with a bit of a dilemma. Right now, I have (what I think is a) fairly solid, if not predictable Aegislash set:
Aegislash
@ Leftovers
252 HP/252 Atk/4 Sp Def
King's Shield
Shadow Sneak
Sacred Sword
Swords Dance
However, I cannot decide on whether to give it an Adamant nature, or a Brave one. At first I thought a Brave nature would be better, since the way you want to play this Aegislash is to have it attack last, so as to take hits better in Shield Forme.
However, I considered two Pokémon: Mawile and Azumarill. Both of these Pokémon have base 50 Speed, access to priority that Aegislash does not resist, and access to Huge Power (Mega Mawile). Keep in mind that Aegislash's base Speed is 60.
Now, if I were to run a Brave Aegislash, then that means his priority moves would move AFTER Azumarill's or Mawile's, whereas if he were Adamant, his priority would move BEFORE theirs. So, if for instance my opponent had a low HP Azumarill and I had a low HP Aegislash, Brave Aegislash would have slower priority and get KO'd, whereas Adamant Aegislash would have faster priority and GET the KO.
My question then is, is this kind of instance EXTREMELY situational, or is it a noteworthy and worth considering? I guess an amendment to that question is what are some concrete examples of where a Brave nature would be advantageous over an Adamant one?