OK, I think I'll share some battle Videos.
NHAG-WWWW-WWW5-7FLL
This was the first time I used Mega Houndoom. I Initially forgot about it's Mega Ability and took on 3 legendaries.
FLYW-WWWW-WWW5-SLJH
I lost this battle, but I think I held my own pretty well.
2QQW-WWWW-WWW5-SLJC
I personally thought this was an impressive battle.