Hey guys, I'm back with some nominations, this one slate larger than I usually do, so I hope you guys enjoy.

[ATTACH]90053[/ATTACH]Mega Beedrill to A+
In a voltturn metagame, Mega Bee here stands as a fantastic option for offensive teams. Its speed and ability to revenge kill a multitude of threats most notably being +1 Mega Altaria, Mega Latias, and non-Choice Scarf Nihilego with its STABs and coverage. It also has utility in that it's a semi-reliable Toxic Spikes setter due to the switches it causes, and with Weavile gone, there's one less thing in the select group that will be able to stop a late game sweep.

[ATTACH]90054[/ATTACH]   Togekiss to B+
With the rise of VoltTurn, and Mega Altaria, Togekiss finds itself increasingly pressured as a sweeper and for a team slot. Mega Altaria gives it competition for a slot due to better defensive typing, sweeping potential, also having Heal Bell, not being weak to rocks while also being able to run Mixed or Special sets such as the one recently utilized by @Cynde. The prevelance of Mega Manectric, Mega Beedrill, Scizor, and Rotom W, and the fall in Krookodile viability also hurt its ability to wallbreak or be reliable defensively. It also is outclassed at being an offensive Flying type by Mega Pidgeot who has the utility to U-Turn, hit harder and ability to beat steels more reliably. In short, Togekiss finds its roles slowly being both outclassed and pressured at the niches it does have over its competition, and it simply doesn't have the consistency for A-.

[ATTACH]90055[/ATTACH] Mega Blastoise for B+
Mega Blastoise faces stiff competition as a spinner, offensive Water-Type and as a Mega. As a spinner, Tentacruel gives it stiff competition as a spinner due to Tentacruel not taking your Mega slot while also providing similar defensive utility, Toxic Spikes, and being a better check to metagame threats such as Infernape,Primarina and Cobalion by virtue of its Poison typing. Offensively, Primarina has better STAB coverage, not taking your mega slot and ability to offensively check Mega Altaria. Rotom W has better splashability, more defensive utility due to will o wisp, and is less susceptible to being chipped as it has a neutrality to Volt Switch. It also has Pain Split to help recover HP, something Blastoise doesn't have, while also being able to pivot out of switch ins, and ability to run Z moves or have passive recovery from Leftovers. Defog Mega Latias has been seeing some usage, giving it even more competition. As a Mega, it doesn't have the offensive utility of say a Mega Manectric, or the Defensive Utility of a Mega Latias due to having no recovery, and its effectiveness has gone down as a result of such a pivot based meta and stiff competition.

attachFull90062 Volcanion to B-/C+
Volcanion's lack of recovery and weakness to Stealth Rock is getting exposed on a consistent basis due to the nature of the Voltturn metagame. Rotom W has better defensive and offensive utility. Primarina doesn't get punished for locking into its moves as much as Volcanion, and Mega Blastoise has better typing and arguably better coverage. Volcanion's low speed hurts it as well, as it often becomes a complete momentum suck, allowing in free switches for common threats such as Mega Latias, Hydreigon, and Tentacruel, all of whom can swap whatever momentum that was left from switching Volcanion in back to their side whether a rapid spin, CM, or a powerful Choice Specs Draco or a simple U-turn.

attachFull90066 Forretress to D
There is no reason to use Forretress. As a spikes setter, its outclassed by Klefki who has better typing and utility with Twave, Play Rough, Screens etc. As a rocks setter it only sets rocks and nothing else, as its often forced to spam Rapid Spin and even when using an attack has pitiful damage, and it's also outclassed by the likes of Metagross and Coballion, who provide much more offensive utility. As a hazard remover, Scizor totally outclasses, as Forretress has no reliable recovery like Scizor, has no way to damage  things meaningfully like Scizor, and Volt Switch is almost useless compared to Scizor U-Turn , as Forre is shut down by most Ground Types anyway.

attachFull90065 Sylveon to B/B+
Sylveon's ability to support bulky teams is bolstered by the fact that it can take on Voltturn staples such as Mega Manectric, Specs Hydreigon, Scarf Ape, Scizor if it has HP Fire and gets the prediction right. It also helps against the chip damage so much pivoting can rack up via Wish and Heal Bell support, something bulky offense and balance appreciate much more than you'd think.
attachFull90061 Arcanine to D
With the ban of Weavile, Arcanine finds itself hopelessly outclassed at checking everything it wants to check. Rotom W both does the job of beating steels better but also gets a free switch in everytime Arcanine comes in. Mega Lati, DDD Mega Altaria and the newly popular Seismitoad and Gastrodon come in on it for free and start throwing off attacks or setting up. Hippowdon's increased viability leaves Morning Sun as a means of recovery almost totally useless. It has lost its only positive and kept all of its negatives from before it rose.