Noteworthy Usage Rises for the Month of April:
(#12, 14.65% -> #4, 20.46%)
Zamazenta's skyrocketed to an insane usage rate, getting an unimaginable K/D in SPL, and becoming the most versatile physically defensive check in the whole metagame. Roar has seen great usage in making Zamazenta win any setup war, not to mention the recent use of Mirror Herb to copy boosts from a QDing Volcarona (you will not be missed), or a DD from the likes of Dragonite, Roaring Moon or Gouging Fire. Incredibly deserved, and a great addition to pretty much any offensive team.
(#15, 13.65% -> #10, 15.50%)
Speaking of offense, Glimmora's surged back up as well. Glimm's always been a bit awkward in that it's always been seen as a dedicated hazard lead, forcing it on specific types of offenses that wanted it as a lead. However recently, we've seen it run on webs teams with the combination of Meteor Beam + Power Herb, in addition to it's incredible offensive coverage Glimmora is able to sweep many teams on it's own.
(#18, 11.32% -> #12, 15.04%)
People kinda realised that fairy/water hits a good majority of the metagame super effectively. In a gen where Dragon and Darks reign supreme, Primarina's recently exploded onto the scene with a wide majority of sets, up to a point where multiple players think it's lowkey broken.
(#23, 8.45% -> #17, 12.74%)
Many people began with skepticism with Darkrai, NP + 3 attacks seemed kinda meh, due to the amount of teams with great speed control options. However, people soon realised that Darkrai doesn't even really need setup, 4 attack sets started gaining popularity, with either HDB or Expert Belt it's able to hit most of the metagame for super effective damage with the coverage of Dark Pulse, Ice Beam, Sludge Bomb and Focus Blast. It's even able to run multiple tech options at the expense of one coverage move, Will-o-Wisp, Thunder Wave, Knock Off are all great options.
(#39, 5.18% -> #24, 8.45%)
Passive Lead Deo is dead and offensive Lead Deo is back. Screens are bad, LO lead sets have seen great use with the combination of Psycho Boost + Superpower hitting most of the meta for great damage, all while being able to setup rocks or spikes and denying opponent's hazards with Taunt. We've also seen more offensive sets with Tera Dark Knock Off see usage, TLDR don't run passive Deos :)