E4 close call

So i was nearby beating E4 tough at the lastest in my way to the champion the delta trevenant sweeped my team with wood hammer

i was thinking if i try level them up again, tough my team is a

sandstorm, armored Tyranitar lv 107 and also a lot of protein ect, dark matter, rock edge, crunch and earthquake
Bold nature
198/20
30/9
74/26
36/13
92/28
sand stream
a life orb/rocky helmet lv 108 garchomp, dig, earthquake, dragon claw and rush
Impish nature
224/5
76/1
82/8
34/21
50/13
12/23
Sand viel

Delta scyther level 109 , with mega and icicle spear, shadow claw, drain punch and low sweep
Quirky nature
252/29
98/10
57/4
50/28
34/28
19/27
tough claws

Delta leftovers Snorlax level 109, belly drum, seed bomb, earthquake, drain punch
135/17
70/26
33/30
42/17
8/19
48/17
thick fat
modest

Delta king rock haxorus lv 107, iron head, surf, crunch, ice fang
Bold nature
252/16
92/4
20/4
56/13
44/0
46/31
Strongjaw

Bold smeargle level 110, empty spot, spore, lock on, sheer cold
non item
83/23
6/6
4/13
2/18
0/23
8/4
own tempo

Stuff i may wanna capture to replace/add

lock on sheer cold mew, with reflect
clefable with magic guard and life orb
lucario, maybe even mega if disponible
another pseudo
dragon dance and rain gyrados
garveoir

what tips and stuff i should do?

nvmiwon,ay