Anyone who has played Super Smash Bros. for Wii U for a decent amount of time has had the displeasure of playing against Rosalina and Luma. The duo can set up a defensive wall against approaching opponents, with Rosalina commanding from the back while Luma does damage out front. The key to defeating this pair is to kill the tiny star as fast as possible, with Rosalina becoming much easier to fight when she doesn’t have her little bodyguard with her. To help everyone in the fight against the cosmic pair, My Smash Corner has compiled a list of every character’s best moves for killing Luma.
The general criteria for these moves is that have to have enough range and speed to knock Luma out of position, while also allowing the attacking player to stay out of range of a counterattack. If Luma is put in a freefall state offstage, it cannot be called back by Rosalina, so My Smash Corner has also listed certain combos which are great for carrying the little space demon to an early demise.
Source: My Smash Corner