Okay to kick things off
Loving the parashuffler dragonite, I love using it and it doenst get enough praise!
Weavile's set isn't exactly standard. Life orb is quite superior set in my opinion (IMO).
Item: life orb
Ability: Pressure
Nature: Jolly
EVs: 252 Attack & 252 Speed
Ice Punch
Knock off
Low sweep/brick break
Fake-out
This set is alot better imo and heres why:
1: Ice punch>ice shard. Weavile is insanely fast so Priority wont always be needed but it can come in handy to say the least
2: Knock off does 1.5x damage if the target is holding an item. Every pokemon holds an item at base 65attack with the 1.5 boost it deals a 97.25 base damage wich is alot higher than night slash.
3: brick break breaks screens give coverage over rock and steel (weakness's) and breaks screens. Low sweep can also be another alternative to lower the opponents speed 100% of the time.
Mega Mawile is insanely good and the best mega evo imo.
There are 2 ways in which its used as a bulky hitter commonly known as Ray Rizzos set or All out attack set. Both can work well in this meta but I honestly think that the bulky set is better because im pretty sure mega mawile with huge power ability and base 105 attack bosts the highest attack stat. at around 210. The bulky set has same moves but the Ev spread is
Bulky set
252hp/76att/180sp def:
Carefull nature
All out attack
252hp/252attack/4hp
Adamant
In the end personal prefernce.
Forretress is fine. Nice standard set nothing wrong here.
Im deffenitly in agreeance with everyone else on this one. Ampharos is worthless on this team.
Jolteon Far outclasses if its not mega so deffinetly replace it for Bug catchers set or this choice specs life orb:
Jolteon@Choice specs/Life orb
252spa attack/252speed
modest nature
Voltswitch/thunderbolt/thunder all do the same accuracy or power. volt switch can switch out of bad typing etc..
Hidden power ice
Shadowball
Signal ball
The last member of this team Gengar.
I would say this set is mix of disable substitue gengar and choice specs/scarfe.
My advice is go for one or the other
Gengar: black sludge
252speed/252sp attack/4hp
Timid
Disable
Substitute
shadow ball
sludgewave
Or The focus sash/choice set
Gengar: Focus sash/Choice item
252spd/252sp attack/4hp
Psychic
shadowball
Sludge wave
dazzling gleam
Both sets work well in this meta game. Dazzling gleam is good because it covers gengars weakness dark. Rest is pretty standard.
Over all seems like a rounded team.
Hope this helped:
Also sorry for typos Im Dyslexic