Try not to minmax stats unless the mon is a lost cause otherwise.

Pokemon: Mega Tropius
Type: Grass/Dragon
Ability: Grassy Surge
Movepool Additions: Dragon Pulse, Earth Power

HP: 99
Attack: 68 > 50 (-18)
Defense: 83 > 120 (+37)
Sp.Atk: 72 > 131 (+59)
Sp.Def: 87 > 120 (+33)
Speed: 51 > 40 (-11)
Total: 460 > 560

Now Tropius is a very tanky nuke with recovery, but still gets raped by ice types, has to switch in with an awful defensive typing and SR weakness, and is painfully slow.

What tier is he now?