Phase 41: Timeline's Roche Limit Power: Unknowable Lb Kirby, discovering that his Jewel of Power prevents him from ripping apart reality, shattered the jewel and has bypassed reality's bounds of power. He now has the power to bring entire timelines inside other timelines (which doesn't even make sense), and has brought his entire home galaxy to Another Dimension. He is planning to combine all timelines to create a strange mishmash of reality. This will make versions of people from separate timelines meet; consequences for this are unknown, but likely disastrous. He is also already in the process of combining multiple dimensions: those being the Monster World, Another Dimension, his home dimension, and more. However, he also has a new ability: the power of creation. He can create entire dimensions like it was blinking, and it is predicted that by Phase 43, he will be able to create multiple timelines at once. By his hypothetical final phase he may be able to create an entire alternate reality with different timelines. He also has the ability to resist being erased, meaning he is completely invulnerable to Kirbio's final form, one of the most powerful things in existence. His motivations are unknown but if we don't act fast, reality may be destroyed.
Credit to Big Blue Bubble for the Monster World, from My Singing Monsters. Credit to Nintendo and HAL Laboratories for Kirby. Credit to Toby Fox for Undertale (because Last Breath Kirby is (I think) inspired by Undertale Last Breath). Credit to tbahowe for the Last Breath Kirby series. Music: Another Domination - Kirby's Return to Dream Land Deluxe