The autocast does not work, period.
Hitting Asgard Dummy with the said item equipped for literal 10 minutes straight at 193 aspd, not a single proc. That's roughly 4280+ hits, even at the supposedly 0.1% chance it should have proc 3-4 times at a minimum.
Has a low chance to auto-cast Ignition Break lv.3 when dealing melee physical damage. (If user has higher level, that level will be cast instead)
If refine rate is 7 or higher, increases a chance to auto-cast by additional 1%.
If refine rate is 9 or higher, increases a chance to auto-cast by additional 2%.
일반 물리 공격 시, 낮은 확률로 오토 스펠 이그니션 브레이크 3Lv 발동(더 높은 레벨을 배웠을 경우 배운 레벨대로 발동).
7제련 시 이그니션 브레이크 오토 스펠 발동 확률 1% 추가 증가.
9제련 시 이그니션 브레이크 오토 스펠 발동 확률 2% 추가 증가.
Kro vid of +9 ignition weapon being used (description in the website linked below)
I counted 18 Ignition Break proc during the 53 seconds he was hitting the dummy. That's roughly 378 hits for 18 Ignition Break proc or on average 21 hits per proc or 4.7% chance of proc.
Edited by Akin
added source link