Good old Meowth Boss Fantasy, bring back old memories ^^
Which pokemon do you want to see fighting along Meowth in your Team Rocket idea ?
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team AND
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team
Switch between Arbok and Weezing with Down B. Meowth provides the A moves since Arbok and Weezing lack limbs.
Meowth & Arbok
B - Poison Sting (the snake shoots needles at a rapid fire speed like Ivysaur's Bullet Seed move as long as you hold down the B button)
Side B - Glare (the face on Arbok's body glows and stuns the opponent for a second... decent range like Falco's Down B move in Brawl)
Up B - Wrap (the snake leaps upwards like Rattly the Rattlesnake did in Donkey Kong Country 2 and then it wraps its body around the enemy and squeezes them)
Meowth & Weezing
B - Smog (Weezing floats in place and emits poisonous gases that damage nearby enemies as long as you hold down the B button, it is based on what Weezing did in Melee)
Side B - Poison Gas (Meowth runs with Weezing trailing behind while emitting poisonous gases like the Smoke Ball item... enemies who walk through the smoke gets damaged as long as they are there... it is kinda like Luigi's Final Smash)
Up B - Sludge (not a recovery move, Weezing spits a glob of sludge and you control its trajectory with the control stick like you do with Yoshi's Egg Throw move)
Also, when Meowth is teamed up with Weezing, they can float like Kirby and Jigglypuff because Meowth would be riding on top of Weezing every time they double jump or more. So, basically switching between the Poison-types would give Meowth two different playstyles to work with.
Final Smash? Meowth's Pay Day like in Brawl.
If Meowth loses Arbok and Weezing, he cannot summon them back until he is KO'd. So, when he is alone, he starts using his own specials. When Meowth is desperate, he fights back.
B - Amulet Coin (Meowth simply throws a coin)
Side B - Fury Swipes (Meowth scratches enemies in combos... kinda like Marth and Roy's Dancing Sword moves)
Up B - Faint Attack (Meowth turns invisible and scratches upward)
Down B - Payback (Meowth scatters coins to counterattack when he is attacked)
Final Smash is still the same, though.
That's my dream.