Axe of Chi

The Knife of Chi, also known as the Last Knife (both terms are interchangeable with blade), is a powerful weapon first formed in Olliverse Alpha. This knife, influenced by Stratosfear, has the ability to grow increasingly powerful the more lives it claims. It also has the ability to directly obtain the abilities of other blades. At its peak, the Knife is able to effortlessly slice a human in half.

The Knife was originally nothing more than a chef's knife in Hellven. It was first used as a weapon when Alfred Oliset murdered a civilian using the knife. Because Alfred was influenced by Stratosfear at the time, the knife became influenced by Stratosfear as well, giving it its well-known abilities. Alfred Oliset was highly infamous for using this weapon, but eventually Stratosfear obtained the weapon for his own using.

A counterpart of this weapon exists known as the Gammablade, or the First Blade, weld by Alfred Setoli.

Description
The Knife of Chi is a chef's knife made of iron, rusted and stained due to exposure to the elements. Its handle was originally composed of oak wood, but because it has worn down significantly, the handle was replaced with an unknown material, whose texture is described by various entities very differently. Some entities describe the handle material as rubbery, while others describe it as fuzzy. Alfred described the texture as rough, while Stratosfear described it as "hard and smooth".

When its abilities are used, or an entity is about to be killed, the Knife glows a crimson red. Otherwise, the Knife does not emit any glow.

Abilities
The Knife of Chi has the ability to grow in power the more lives it claims. The more people are killed, the more abilities the Knife unlocks. These abilities include enhancing the user themselves, summoning various types of projectiles, and immediate death for weak beings.

The most powerful ability of the Knife is the ability to obtain the abilities and certain properties of other melee weapons. Up until Stratosfear's obtaining of the Knife, a total of 24 melee weapons have been obtained, granting the Knife of Chi a wide variety of abilities. If the Knife already has a certain ability, then the inclusion of a weapon with said ability will simply increase the effectiveness of the ability.

Oliset's reign over Hellven
In Hellven, The Knife of Chi, as a chef's knife, was made the same way as any other chef's knife. Eventually, a civilian bought the knife from a store for their cooking. The civilian would be killed by Alfred Oliset, using said chef's knife as the murder weapon. Upon doing so, the chef's knife was influenced by Stratosfear, bringing forth the Knife of Chi. Initially, it was a rather weak weapon, but as Alfred claimed more lives, the knife grew more powerful. This weapon was used by Alfred during his reign over Hellven, who personally executed those against him using the weapon.

The Knife was used in the Dual of Balance against Beta Omicron, Khakis Flora, Ophelia Oderfla, and Damascus Ferrum. The quartet defeats and banishes Alfred, but not before he kills Beta, who was taken with Alfred as he was banished.

Beginning of several upgrades
Alfred was freed from his Void Prison by Brine, who recruits Alfred to his team of villains. Alfred sets off to "harvest" several lives in order to make the Knife significantly more powerful. During this time, at least two Earths worth of lives were claimed by Alfred. The Knife of Chi was used in the battle of Kamar-Taj against several people, but the ultimate result is that Alfred is trapped by Beta without any lifeform casualties. Alfred simply teleports away to escape.

Alfred sets out to upgrade the Knife, and to do this, he would obtain swords from other universes to fuse with the Knife of Chi. While this encounter has not been looked into in more depth, Alfred quickly creates a max-tier Diamond Sword from the Minecraft submultiverse, and obtains the Meowmere, Star Wrath, and Terra Blade from the Terraria Multiverse.

He heads into the ROBLOX universe, or more specifically, the Sword Fight on the Heights, where a tournament was occurring. Seven swords were collected from this area - the Venomshank, Ice Dagger, Darkheart, Illumina, Firebrand, Windforce, and Ghostwalker. With these seven swords in his hand, Alfred fuses them all into one powerful weapon - the Caliber. According to Oinite Xondir Oderfla, he and Oderfla Oderfla came in to try and stop Alfred, who escapes before the two could do anything.

The swords of the Stepping Stones
As the heroes head to the Cataclysm Machine, Alfred collects several swords at every stop they make, although before that, he receives some sort of High-Energy Blade from Eevee.

On the planet Hansha, Alfred obtains the Crushing Crystal Blade from a convenient temple, after a while of searching and two encounters with the heroes. Sometime later on the planet Chaloid, the Sword of Frostflame is found in a convenient chest. Before the heroes land on the planet Viridis, Alfred, who was in the storage room of Chrono Temporum's ship, obtains an unbreakobtainium sword.

On the planet Viridis, Alfred obtains a verdana sword from a convenient shrine. At the planet Radia, Alfred encounters the cyborg monster Atlantis, who retrieves the Elephant's Foot for him, located at the core of the planet.

On the planet Mawana, Alfred deals the final blow on the Time Eater, which drops an Any-Way Back Rift Blade. Before Alfred heads to Hex, Stratosfear gifts Alfred with one of Cyalm's greatswords. At the planet Hex in Chrono's ship, Alfred obtained Oinite's Icycle by threatening to kill him if the weapon is not given. The Icycle is not immediately fused with the Knife. After the heroes all leave the planet, Alfred obtains Mirror's Shard, somehow.

Finally, in the weapons room of Carcerem, Alfred obtains the Binary Knife, taken away from Adobe as he was imprisoned. After the Binary Knife is obtained, Alfred takes control of Limbo and Glichart to obtain a shard from the soul jar, located in a region in space. Once the two have obtained the shard, Alfred swiftly kills both of them and uses their matter to create an anti-matter sword. Both the shard and the anti-matter sword are also not immediately fused with the Knife.

The final battle on Terminal Void
Alfred's final use of the Knife of Chi was in Terminal Void, where he battles against Oinite, Oderfla, and several other people. After showing the Icycle, shard, and anti-matter to the heroes, he fuses the three weapons with the Knife and the battle begins. Ultimately, Alfred was defeated, losing the ability to use the Knife of Chi. Stratosfear obtains the now-powered up Knife, giving him a physical form. He kills Oinite with the Knife and hurls him off into the void. Afterwards, Oderfla attempts to fight against Stratosfear, but the latter teleports away.