(Reposted from general diccusion after being recomended to do so.)
This has bothered me since launch and I thought I would finally post about since nothing has been done about it yet.
First some math.
Penthesilea damage is by default 260/260AP every fourth second. The first lvl gives pen 260/338AP. 5 attacks per 20 secs gives 1300 normal 1690 AP damage in 20secs.
With the 2nd lvl you get 260/416AP but only attack every fifth second instead every fourth so 4 attcks gives per 20 secs 1040 normal damage 1664 AP damage in 20secs.
These calculations were made with additive percentage increases. If the hero has higher % achilles has (58%) part AP damage the 2nd lvl is less bad but still a downgrade.
Against a 100 armour opponent best case scenario for the skill the damage over 20 seconds with first lvl
100 armour reduce average 75% of normal damage 100*(0.5-1)=average 75 reduction:
1040*0.25 + 1664 =1924
With just the first lvl:
1300*0.25 + 1690 = 2015 so you do around 5% more damage without heavy weapon lvl2 than with it vs 100 armour.

And vs lower armour values it gets much worse.
(Sure you get a little more damage in first hit but the faster attack speed catches up quickly)
Please fix this asap. Maybe make lvl 1 a bit worse and lvl 2 not a penalty. Also the skill is a bit confusing (see other threads).
Thank you very much:).
Extra opinon
Hippolyta warhorse skill seems to take a bit too much of a damage over time decrease even with the range increace . Take
this with a grain of salt since I don't know accuracy and AP missle damage change.