First Screenshot is without ignition Shadow Weapon,
2nd is with Shadow Ignition Weapon.
When using +7 Ignition Shadow Weapon + +9 Rune Knight Shadow Shield my damage should have additional 56%. But upon checking no damage output has been change and also the Auto Igntion Break does not Proc.
Please check please. Ignition Shadow Weapon combo with shield is really broken. See Screenshots & Proof for reference.