Nether Plunge

Retains 1 point of HP and recovers 25 % Max HP upon taking lethal damage, before entering the [Prowl] mode. This can only triggered once per battle.
[Prowl] is also automatically triggered at the start of battle.
[Prowl]: Moves to an empty tile near the enemy unit farthest away. After a brief delay, appears from underground and sends all surrounding enemies within 1 tile airborne for 1 seconds, dealing Physical Damage equal to 100 % ATK. Hatsuchiri cannot be targeted or selected during Prowl's movement period.