Oh my god! I have to do Mega Ludicolo!
Ludicolo --> Mega Ludicolo
Water-/Grass-type --> Water-/Grass-type
Stats: 80 HP / 70 Atk / 70 Def / 90 SpA / 100 SpD / 80 Spe --> 80 HP / 110 Atk / 70 Def / 110 SpA / 100 SpD / 100 Spe
Ability: Swift Swim / Rain Dish / Own Tempo --> Mambo (Boosts speed stat by 1 stage when it uses a dancing move*)
New Moves: Petal Dance, Quiver Dance (it doesn't make sense for it to use the other dancing moves which it doesn't already get)
*All the dancing moves are Swords Dance, Petal Dance (boosts on each turn successfully executed), Rain Dance, Feather Dance, Teeter Dance, Dragon Dance (boosts speed by 2 stages if you include both boosts), Lunar Dance (boosts speed of pokemon brought in), Quiver Dance (boosts speed by 2 stages if you include both boosts) and Fiery Dance.
Concept: Ludicolo has always been primarily a swift Swim Sweeper in OU. However, that all changes with Mega Ludicolo's new ability: Mambo. Named after the dance which may or may not exist outside of West Side Story (this isn't one of these jokey "may or may not"s: I am genuinely unsure), this new ability boosts the users speed each time it uses a dancing move (listed above). I named it "Mambo" as it is a very fast dance. This makes sense for Ludicolo as it is, well, a dancing duck shaped like a pineapple (if that's the right spelling). The great thing about this new ability is that Ludicolo already had a plethora of dancing moves to use, including Rain Dance, Swords Dance and Teeter Dance, and this new form gives it access to Petal Dance and Quiver Dance to bolster its stats. The typing hasn't changed for Ludicolo as its typing is already very unique. Its new stats give it good mixed attacking stats, enabling it to run a Swords Dance set
effectively - something which its previous form was unable to do. These are the sets that I feel may do well on it:
Special Attacker
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name: Special Attacker
move 1: Petal Dance
move 2: Hydro Pump / Surf
move 3: Ice Beam
move 4: Focus Blast / Giga Drain
ability: Rain Dish / Own Tampo
item: Ludicolonite
evs: 252 SpA / 4 SpD / 252 Spe
nature: Modest
Quiver Dance
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name: Quiver Dance
move 1: Quiver Dance
move 2: Giga Drain
move 3: Hydro Pump / Surf
move 4: Ice Beam / Focus Blast
ability: Rain Dish / Own Tempo
item: Lodicolonite
evs: 252 SpA / 4 SpD / 252 Spe
nature: Modest
Swords Dance
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name: Swords Dance
move 1: Swords Dance
move 2: Seed Bomb
move 3: Waterfall
move 4: Ice Punch / Drain Punch
ability: Rain Dish / Own Tempo
item: Ludicolonite
evs: 252 Atk / 4 SpD / 252 Spe
nature: Adamant
Status Sweeper
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name: Status Sweeper
move 1: Teeter Dance
move 2: Giga Drain
move 3: Scald
move 4: Ice Beam / Focus Blast
ability: Rain Dish / Own Tempo
item: Ludicolonite
evs: 252 HP / 252 SpA / 4 Spd
nature: Modest