Devil Mario (Canon, Power Star)/Withersoul 235

"While your focus has been on saving your brother, our army has already attacked and acquired EVERY Power Star in the Mushroom Kingdom. They're near, and once they arrive, the combined force, of ALL Power Stars will be unleashed. And our final purpose will be fulfilled... The destruction, of all creation."

- Devil Mario

Summary
The possessed, psychopathic iteration of Mario in the Power Star webseries by Daniel Sun, commonly referred to as Devil Mario.

In this series, Mario is attacked in his sleep by Boos, who overwhelm and possess him. They then immediately use his body to murder dozens of Toads in search for the Power Stars, which will enable them ultimate power and the ability to accomplish their ultimate goal: the destruction of all creation.

In Power Star 2, Mario sets his sights on killing Peach and stealing her Power Star, when Luigi butts in and prevents it. The two do battle evenly, with Mario just barely overpowering his brother. The two continue to battle for the Power Stars into Power Star 3, where Mario has secured a few Power Stars already, and starts overcoming Luigi more and more. The Boos are also corrupting Mario more and more, to where it's harder and harder to find the old guy in there.

Mario begins slipping away, but Luigi focuses on saving Mario rather than the kingdom. He believes there is still a way to save his brother. The two do battle once more, which lasts and finishes in Power Star 4, with Mario winning.

He then reveals that, while Luigi has been focused on saving his brother, he let the Boos possess an army of Toads and attack and acquire every Power Star in the entire Mushroom Kingdom. Luigi uses the last of his power to escape from Mario and reveals that he won't stop trying to save his brother from the Boos' grasp, even though the army is approaching as they speak.

Mario allows Luigi to fight him and try to defeat him "one last time." They duke it out, with Luigi fighting at his absolute peak. But Mario absolutely stomps him, in spite of all of his efforts. Mario is displeased by the horrible performance, and right as he defeats Luigi, his army arrives, fuses all the Power Stars together into the Great Power Star, and thrust it into Mario's possession, powering him up drastically.

With Luigi nearly dead, Mario then finishes him off with a sword through the head, and kills Peach by shoving a sword in and out of her throat. With his family dead, the Boos allow Mario to see what has happened. What they forced him to do. Within that very little amount of time they granted Mario, he made a tough decision.

He seen no point in living if those he loves are dead. And he didn't want the Boos to continue using his body for mass genocide. So, Mario committed suicide on the spot, thereby preventing the Boos from continuing their wrath.

The entire series can be watched in full here.

Powers and Stats
Tier: Unknown | 4-A

Name: Mario, Devil Mario, Mario from Power Star, Power Star Mario, Possessed Mario

Origin: Power Star animations by Daniel Sun

Gender: Male

Age: Presumably the same as canon Mario

Classification: Possessed Human

Powers and Abilities: Superhuman Physical Characteristics, Enhanced Swordmanship, Enhanced Unarmed Combat, Energy Projection, Pyrokinesis, Teleportation, Aura (emits a red aura that can change the sky colour and cause stars to swirl around uncontrollably), Light Manipulation, Laser Vision and Limited Immortality (Type 6; due to the fact Mario's being possessed by Boos, AKA ghosts, his death would only mean the permanent inactivity of the vessel, allowing the Boos to look for another host. The only reason why the Boos went down with Mario was because they had been in his body for extended periods of time, causing them to become one with him)

Attack Potency: Unknown (his aura changed the sky colour, which was confirmed here. However, it is unknown to what extent this was, the area it encompassed and if this even changed anything aside from the purely aestethic sky colour) | Multi-Solar System level (his power was causing stars in the sky to swirl around)

Speed: Subsonic (his movements can't be seen) | Transonic (broke the sound barrier with his movements)

Lifting Strength: Unknown

Striking Strength: Unknown | Multi-Solar System level

Durability: Unknown (took hits from Luigi, who was stated to be as strong as he was) | Multi-Solar System level (could only be killed by his own attack)

Stamina: Extremely high | Higher

Standard Equipment: A sword and the Power Stars

Intelligence: Above Average (distracted Luigi, that way his army could obtain the Power Stars and bring them to him)

Weaknesses: Very arrogant

Key: Base | W/ the Great Power Star