Surprisingly good. It's a little cumbersome to have to set up two light seals for mirror image, but it's defensive utility that's exceptionally useful, especially during Gopherwood when there's no access to summon calls.
Making a Tetrastreamer for seal generation was under consideration, but Korwa's defense is just too good to make a lot of the other utility weaves useful enough to justify a cooldown, and GW fist's ougi might as well be a damage cut on its own. A second ignition from Splitting Spirit both provides extra coverage if Runeweave is needed for mirror image or to set up light seals again, and for redundancy if Andira needs meter to ougi on a trigger turn.
Gopherwood felt very safe with this setup, and it'd have been even more stable had I pressed cooldowns more frequently.
wind ship 7%/no reactor buff
start 0:00
wings 50% 7:23
wings 0% 15:27
body 25% 21:42