I always bring my Volcarona from Gen V whenever I'm breeding/hunting/catching/flying, and I normally bring my Gallade which I use for catching, it has Thief, False Swipe, Hypnosis and Protect which I may switch out for a higher PP move instead of only ever using Thief. Also, I try and bring my two Pickup Gourgeist for a)items and b)luck as Pumpkaboo and Gourgeist are my favourite Pokemon, so I hope they bring me luck :3 I know, I'm boring... Also, I bring my Vileplume (<3) for Sweet Scent and my Greninja for Surf for Horde Battles, Lvl.100 Greninja with STAB Surf wrecks those Wingull, Gulpin and Bellsprout >:D