Sōgetsu

"Tamakoma Triggers match the traits of their users."

- Replica

Sōgetsu is a normal Trigger.

Appearance
Sōgetsu looks like a hybrid between a knife and a hatchet. It has a black handle and bright yellow blades with a curved shape.

Overview
Since Konami dual-wielded Kogetsu during the days of Old Border, which was said to be the only Attacker Trigger in existence until Scorpion was developed, Sōgetsu was likely created some time after them.

Black Trigger Capture Arc
In the anime, Konami used Sōgetsu to fight Yūma

Large-Scale Invasion Arc
Konami uses Sōgetsu to easily bisect the Rabbits she is pitted against. She then attempts to fight Viza, but to no avail as he simply dodges or deflects her attacks. When he sends the Trion Warriors to the city, she uses Sōgetsu to cut them down, with help from Arashiyama Unit and Kako Unit.

B-Rank Rank Battles Arc
Konami uses Sōgetsu to fight Gatlin using powerful blows. She uses it to bisect both Gatlin and Tachikawa.

Abilities
Sōgetsu is rather powerful, being capable of damaging the extremely durable armor of a Rabbit. Nonetheless, it is very light and it can be held with only one hand, which makes it possible to use a dual-wielding style. It is also durable enough to repel several attacks from Despinis wothout cracking. Much like Kogetsu, it can be put back into its sheat to activate other Triggers, without the need to dispel it completely and reform it successively. Sōgetsu has it sown Optional Trigger, Connector, which can merge two of them into a single, enormous battle axe.

Users
The only known user of this Trigger is Kirie Konami, who has two in her Trigger set.