Drizzle Bronzong - while the loss of Levitate hurts, Drizzle gives it a better Heatproof + more team utility. Gravity + Drizzle is an interesting niche (counters Charizard Y pretty nicely and X without EQ), but it doesn't have much of an offensive presence.
Water/Fairy Milotic - another +Fairy selection; Competitive is interesting, but no Fairy STAB kinda sucks.
Psychic/Normal Reuniclus -
252+ Atk Aegislash-Blade Sacred Sword vs. 252 HP / 252+ Def Reuniclus: 52-61 (12.2 - 14.3%) -- possible 7HKO
countering Aegislash is nice, I guess, but its Dark weakness doesn't disappear, which sucks considering Bisharp is around
Simple Slowking - Trick Room + Nasty Plot is very interesting, but two turns of set-up plus Trick Room's short duration kinda hurts it. +4 Nasty Plot sounds painful though.
Kinda difficult to pick between Slowking and Bronzong, but I think I'll pick Drizzle Bronzong for this round because I like the utility it has/appears to offer.