I would also say that the MU between Luigi and Wario is even. Luigi has a powerful air game and he is good at juggling too (at lower percentages). Luigi's nair, bair and up-air have good range/hitbox placement and he can just interrupt strings with nair. Luigi can kill with a variety of moves and luckily he can't grab-release us to aerial Fire Jump Punch/up-angled f-smash. Don't even think of landing near Luigi! If Wario is recovering low, he can just use his cyclone to knock us off the bike (but recovering low is just bad overall). That is very situational though. Bite beats Luigi's Green Missile, so if Luigi is going for the edge or on the stage/still offstage we can predict that and strike with an attack, par example waft. The bike as a projectile is good at pressuring Luigi offstage. But I feel that Luigi shouldn't have too much trouble to recover anyway. His cyclone beats bite and many of our moves, IIRC. The cyclone is good at eliminating the tires too. Luigi also has some quick tilts and jab. Yeah, Luigi overall is quick in both aerials and ground game. He can kill, and so does Wario. Bite is a nice mix-up tool and both character's range isn't very threatening. Wario's air mobility compared to Luigi's is a huge difference - Wario's ability to weave back and forth is what Luigi has to struggle the most with IMO. Overall I have to say that this is an even MU.
LOE1: 0
xzx: 0
LOE1: 0
xzx: 0