Archvillains are extremely powerful entities. They con +5 to their level. They typically have tens of thousands of HP (ten times that of standard bosses), substantial regeneration and recovery, high damage, and have a cycling period of near-immunity to all Status Effects except Sleep and Immobilization. Approach with extreme caution and several teammates.
Archvillains are also noteworthy for having strong debuff resistance that scales by level. As of Issue 9, this resistance applies to -RunSpeed, -Recharge, -Endurance, -ToHit, -Defense, -Perception, -Regeneration, and -Recovery.
|AV Res Mod||0.60||0.60||0.61||0.61||0.62||0.63||0.63||0.64||0.64||0.65||0.65||0.66||0.66||0.67||0.67||0.68||0.68||0.69||0.69||0.70|
|AV Res Mod||0.70||0.71||0.71||0.72||0.72||0.73||0.73||0.74||0.74||0.75||0.75||0.76||0.76||0.77||0.77||0.78||0.78||0.79||0.79||0.80|
|AV Res Mod||0.80||0.81||0.81||0.82||0.82||0.83||0.83||0.84||0.84||0.85||0.85||0.86||0.86||0.87||0.87|
So, for example, while it might seem as though a Defender's Radiation Infection should be valuable against Captain Mako's extremely high defense bonus in the Statesman Task Force, the Infection's debuffs are heavily resisted. Optimally enhanced, Radiation Infection applies a -61% Defense penalty, which should cripple Mako's defense rating, but as it's against a +4 enemy it is at half strength due to the Purple Patch (-61 * .5 = -30.5), and as it's against a level 54 Archvillain a further 87% of that is resisted (-30.5 * (1 - .87) = -3.965%), leaving the net effect approximately half as useful at counteracting Mako's high defense as using a single Insight inspiration for a +7.5% ToHit bonus. Similarly, even against an equal-level AV, a level 50 Defender's mighty Lingering Radiation Regen debuff will be dropped from its usual -500% to approximately -65%.