A few conjectures can follow from this, so instead of bolding the sweet conclusions, I'll just post the information obtained while trying to determine if MDT affects breath damage.
Base Breath damage: 840
Spoiler: show
Damage with Avalon Body: 840 (No effect)
Spoiler: show
Damage with 5PDT+5MDT Ring: 800 (~5% Reduction)
Spoiler: show
Damage with 5PDT + 5MDT Ring + Shell: 800 (~5% Reduction; Shell has no effect)
Spoiler: show
Damage with Dragon Harness's 10BDT: 757 (~10% Reduction)
Spoiler: show
Damage with Dark Ring 5PDT + 4BDT + 6MDT: 757 (~10% Reduction; notice BDT+MDT=10)
Spoiler: show
Damage with Twilight Torque + 5PDT + 5MDT: 760 (~10% Reduction, but less reduction than BDT + MDT which equaled 10BDT)
Spoiler: show
Review:
- Shell does not affect breath damage
- Avalon does not affect breath damage
- Dark ring's MDT affect's breath damage
- Dark Ring's BDT+MDT shows equivalent reductions seen by 10 BDT from Dragon Harness
- Twilight Torque + Dark Ring MDT reduction is less than 10BDT from Dragon Harness (Which was equal to Dark Ring's MDT+BDT)
The next set of tests: See whether Avalon's MDT was completely removed and see whether Dark Ring reduces Breath Damage during Ballista.
Avalon (Top DMG), No gear (Other DMG): 25DMG Difference (Not 5% reduction, but ballista changes the formula for damage)
Spoiler: show
No gear (Top DMG), Dark Ring 5PDT+5MDT (Other DMG): Again, damage reduction ~3%, but Ballista changes formula
Spoiler: show
Review:
- Avalon is not broken (Just doesn't work on breath spells; seems to be the same type of reduction as shell since shell does not affect breath dmg)
- Dark rings work on breath spells even though shell and avalon do not