Mugatsumi (Pact of the Sword Bearer)

There are only 6 Sanso in existence, most of these blades hidden behind walls of labor that one must provide to prove to each blade that they are worthy of wielding them.

This blade once gained, becomes a +1,+2 and +3 weapon that is attuned to you, at levels 6, 10 and 14 respectively. You may use only one of these blades at a time, and can switch to any other blade after a short rest. 

Magatsumi (Requires 2 - Part questline): A katana forged in the wilderness by Susanoo', imbuing the spirit of 3 insects; Kumo (Spider), Tonbo (Dragonfly), Mukade (Centipede).,

-- Kumo's Trap (Level 6) - As a Bonus action and expending a Pact slot, Magatsumi paints a cobweb-like pattern on the ground surrounded by four groups of four spider-like eyes, covering 15ft that acts as difficult terrain for enemy creatures. Enemy creatures that enter or start their turn within the cobweb, must make a Strength Saving throw with a DC equal to your Spell Save DC. On a failure, they are restrained until they roll a Strength Saving Throw against your spell Save DC at the end of their turn to break free.

-- Tonbo's Speed (Level 10) - As a magic action and expending a pact slot, Magatsumi forms several dragonfly-wing shapes around itself before expanding Magatsumi's power to cause two dragon-like wings to sprout from the wielder's body. These wings grant flying speed equal to your movement speed, and grants the wielder effects of the Haste spell upon its activation. Additionally, you deal 2d4 extra necrotic damage with attacks made by this weapon.

-- Mukade's Protection (Level 14) - As a magic action and expending a pact slot, Magatsumi summons a humanoid centipede creature (uses statblock of Shield Guardian). This creature shares your initiative, and is bound to you using your blade, rather than an amulet. Additionally, it uses your spell attack modifier for attack rolls.

Note: The weapon's +x bonuses are not automated, so make sure to use Avrae custom commands for that.

Please note, all buffs with expending a pact slot, last for a duration of one minute and no more. Once each blade's separate ability is used, they cannot be used again until a long rest.

Proficiency with a Longsword allows you to add your proficiency bonus to the attack roll for any attack you make with it.

Notes: Weapon Property: Finesse, Pact of the Sword Bearer Warlock, Damage, Combat, Versatile, Sap