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Alot, Whimsy has 116 speed while Tornadus has 111 i think
Went with your suggestion, I lumped U-turn and Memento together because Momentum moves (Shame it probably doesn't get Parting Shot).
Fear is taken out, I'm gonna leave in SubSeed cos it deserves a mention but not a set imo
Trick room can be great with Encore and U-turn
And i cleared it up on the taunt bit, gonna add some things the EVs help it with later
Overview
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-Fastest Prankster
-Great support movepool
-A typing that is a blessing and a curse
-Low Offensive stats
Support
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name: Offensive Support
move 1: Encore
move 2: U-Turn
move 3: Memento
move 4: Switcheroo / Stun Spore / Taunt
ability: Prankster
item: Lagging Tail /...