When sheathing your weapon after an attack, you can now immediately draw into an Iai Slash or Iai Spirit Slash.
Land attacks with Iai Slash to increase your Spirit Gauge. Time this against a monster's attack to fill your gauge faster. Minor attacks will not knock you out of this attack.
Iai Spirit Slash is an extremely potent technique that consumes one Spirit Gauge color level. Time this against a monster's attack to consume no Spirit Gauge. Minor attacks will not knock you out of this attack.
You can use a slinger burst right after an Iai Slash. Use it, along with your Iai Slashes, to stagger monsters.