It's great to See Mundo changes on PBE however @riot missed the mark.
Context from surrender at 20: Dr. Mundo Burning Agony (W) [NOTE: There are no actual changes to the total damage or health cost of this ability but it now ticks twice per second instead of just once - source.] Masochism (E) [few changes, now makes next attack also deal increased damage.] "Dr. Mundo deals an additional 5/20/35/50/65 (+ 2% total Health) magic damage on his next basic attack and increased attack damage for 5 seconds. Dr. Mundo gains an additional [+0.4/.55/.7/.85/1] attack damage for each percentage of health he is missing." [This is an auto attack reset]
Right now Dr Mundo is nothing but a big ball of free stats with minor to little counterplay or interactivity. Q-Ranged single target slow with %hp magic dmg W-AOE magic dmg and free tenacity E-Free AA dmg R-speed and health regen free
And now mundo is just getting more 'free' stats. No interesting mechanics etc. Please tell me that mundo is on the radar for some more interesting love. in the mid term? He needs something actually interesting.
That being said this E change might be a nice little band aid for viability in the short term.