Well heres my idea for the copy attack:
his neutral triangle move can be the popit cursor, where he whips the popit cursor at the player in front of him and once he does this, he automatically gets their costume and abilities (like kirby), and the best part is once he gets rid of that specific costume and hits another person with this attack, it changes his neutral triangle so once he does it, it brings in the popit menu for him to choose to pick the costume section or just the cursor again, if he picks the costume section he can choose from all the costumes he gained by using this move.
But what if he's facing like... a kratos, a fat princess, and a sweet tooth? Which form would he take? A random one?
Well then Sackboy can have the body of kratos, the head of fat princess with fire instead of hair.
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