Luigi
From Yb Timeline
History
One day, in order to give Luigi more things to do, Mario suggested to him that he join the Yoshi Bodyguards. Although Luigi didn't really want to go, he was forced into it by being thrown through the roof. Soon after Mario appeared to show up, but it was a robot sent to kill Luigi by Robot Nation. Mr. Game and Watch destroyed it. He was around when the gate to the Shadow Dimension was opened, leading to the Shadow King's invasion of Star World. He was injured after shot out of a cannon and was healed by Chibi and a passing Wiggler. They were eventually picked up by Anubis in his ship and returned to the HQ, where the newly-arrived Dr. Mario healed him.
Around this time Phazon began to appear on Star World, mutating some creatures. Koop detected one such creature lurking about at Yoshi's Island, and so they went there to fight it with some prototype weapons he had made. The creature turned out to be a monstrous, mutated shy guy. A meteorite made of phazon fell out of the sky and hit the shy guy, mutating it further and increasing its size to thirty feet tall. They were able to incapacitate the shy guy, though, but Luigi and Dr. Mario were accidentally left on the island.
They were picked up by Danny while heading to a party hosted by Princess Peach in honor of the YB. Unfortunately, the party was interrupted by Metal Top, who used a speech Peach gave to awaken the Beanstar. It then raised Peach's Castle into the sky with a giant version of itself and used the Beanstar to become invincible and blast the YB out of the castle. To defeat Metal Top, the YBs traveled to Star Haven to get the Star Rod, but found it had been shattered. This sent them on a journey to rebuild it from the shattered fragments, during which Luigi was turned into a dancing banana temporarily. Later on when they had reached Metal Top's ship with the rebuilt Star Rod, they encountered a robotic Luigi who attacked them but was destroyed. They then reached Metal Top and used the Star Rod to engage in a wish battle, finally destroying it.
Luigi later joined them in investigating a Space Pirate base on Yoshi's Island, though as usual he lagged behind. While trying to catch up with some others they overheard some loud roaring and something crashed through the cavern wall, a giant phazon-mutated Wayoshi. The damage from this colossus caused the base to collapse and they had to escape. Later all the phazon culminated in infected water that evaporated into phazon clouds that then rained phazon. The resulting rain infected a nearby forest that began to attack the HQ, forcing the YBs to flee, but mutated paratroopas showed up and attacked them.
About this time Anubis contacted them and led them to a large crater where the phazon was originating from. They arrived, but Luigi stayed behind in a ship because he was too afraid to go out. The other YBs (primarily Anubis) then destroyed the source of phazon, Sango, the Titan of Thunder, and they returned to the HQ.
