Cresselia to rise to A+: yes, its among the best trick room setters in the meta and trick room is more abusable now with mega camerupt
Diancie to rise to A+: yes, diamond storm is a really good move to have, clear body before mega evolving helps circumvent intimidate leads, magic bounce is really nice because it prevents diancie from being put to sleep or paralyzed
Keldeo to rise to A-: yes, it works really well with shaymin-sky and its a great user of quick guard
Mawile to drop to A: no, it's still a good pokemon to use on semi trick room and it has nice typing
Azumarill to rise to A: yes, its a good answer on hyperoffense teams to help check trick room, it also gets rid of mega camerupt easily.
Tyranitar to drop to A-: yes, honestly its typing is really lackluster and its weak to so many common stabs like fighting, water, and ground
Aegislash to rise to A+: yes
Lucario to rise to A-: no, its really frail and with bad speed, although it has some okay typing. 252+ Atk Technician Breloom Mach Punch vs. 0 HP / 4 Def Lucario: 288-342 (102.4 - 121.7%) -- guaranteed OHKO
Jirachi to drop to A-: yes, amoonguss and togekiss are better
Venusaur to rise to A: no, as a bulky grass type, i honestly feel like ferrothorn does a better job of spamming leech seed. as for a chlorophyll user, sun isnt really so good anymore and rain is more common
Hydreigon to rise to A: yes
Scizor to rise to A-: no, its stopped cold by any fire type and heatran is really common