What are good teammates for Chandelure for the battle stadium (Singles & Doubles) that cover its weaknesses and threaten its checks/counters? I'm mainly worried about Gyarados, Togekiss, Hydreigon, Dragapult, Tyranitar and Excadrill.
Please explain why said recommended teammates are effective.
I'm going to use a variety of sets. (Trick Room, Sub + Calm Mind, Will-o-Wisp + 3 Attacks, Choice)