My first wifi team

[The Bringer!]

Ok, I'm trying to make to make a good team for wifi battles. This is my idea (I hope it isn't too bad).

Xatu
Impish 252 spd, 252 def, 6 sp
(don't know what ability to have)
Tailwind
Wish
Haze
U turn

Umbreon (I wish it knew roar...)
Calm 252 spd, 252 def, 6 sp
Sychronize
Toxic
Wish
Mean Look
Baton Pass

Forretress
+def -spa 252 def, 252 spd, 6 hp
Sturdy
Stealth rock
Spikes
Rapid spin
Explosion

Ludicolo
Bold 252 def, 252 spd, 6 hp
Rain dish
Leech seed
Rain dance
Surf
Giga Drain

Drapion
Adamant 252 atk, 252 sp, 6 hp
Sniper
Cross Poison
Night slash
Agility
???

Porygon-Z
Modest 252 spa, 52 def, 200 sp, 6 hp
Adaptability
Ice Beam
Thunderbolt
Recover
Tri Attack

So, I think this might work. I would appreciate ideas for items, moveset changes, and team changes.