Hi there, ChaosOS again. You may have read my previous blog on D.Va's Ablative Armor , and here I wanted to address something I mistakenly left out in that post: Percentile HP damage.Simply put, in Heroes of the Storm percentile HP damage ignores all forms of mitigation and vulnerability. However, as of the 5/31 balance patch D.Va is still bugged (I retested to confirm the bug), which changes some of my rankings and evaluations of Ablative Armor. This bug means both Defensive Matrix and Ablative Armor reduce % HP damage. Most Giant Killer style abilities give the bonus damage as a seperate damage instance from the regular attack, making them susceptible to Ablative Armor. For reference, this impacts the following abilities and talents:-Artanis Titan Killer-Cassia's Martial Law-Diablo's Life Leech-Giant Killer on Falstad, Lunara, Raynor, Sgt. Hammer, Thrall,-Greymane's Alpha Killer-Leoric's Drain Hope-The Lost Viking's Nordic Attack Squad-Ragnaros' Giant Scorcher-Tassadar's Focused Beam-Tychus' Minigun (Not including The Bigger They Are)-Xul's Giant's Curse-Zagara's Corrosive SalivaFurthermore, the following abilities and talents will be affected by Ablative Armor if there is an ability power reducer in play or D.Va is using her Defensive Matrix (due to the bug also meaning her Matrix can reduce % HP damage)-Blood for Blood on Tyrael (Interesting discovery: He's the last hero to still have the default version)-Azmodan's Sin for Sin-Cho's Uppercut-Diablo's Lord of Terror-Illidan's Fiery Brand-Kerrigan's Essence for Essence-Leoric's Crushing Hope and Spectral Leech-Tracer's Quantum Spike-Tychus' Minigun (With The Bigger They Are)-Valla's Manticore-Varian's Juggernaut-Xul's BacklashKharazim's seven sided strike is not included because he is removed from the map while he performs the attack.What does this mean? Ablative Armor is a lot better, but when this bug is fixed if you're facing heavy % HP damage I recommend Emergency Shielding over Expensive Plating or Ablative ArmorI also just want to mention that in the spreadsheet I have updated it to include the values for when a 25% vulnerability is applied or when D.Va's defensive matrix is being applied to the damage source.