Impact of Hero Defense on Caused Damage[]
Ok, here's a quick run-down of my findings.
All data gathered by attacking a resource tower defended by the same player/same hero/same units.
Note: "Diff" column below is calculated as follows
(diff in damage) / (diff in DEF)
to obtain damage difference per single DEF point.
Case #1[]
Resource tower hero: HATK 173 + ranged atk+2% + 138 x EEA
Test hero: HDEF variable + no defensive buffs/racials/spells + Bone Dragon
Case #2[]
Resource tower hero: HATK 150 + ranged atk+8 + 100 x Lich
Test hero: HDEF variable + no defensive buffs/racials/spells + Bone Dragon
Conclusions[]
As can be seen from the above tables, there is a point where the amount of received damage per each additional point of HDEF is only half of what it was before that point. That point (see the diagrams below) where the line changes slope is exactly the opposing HATK, i.e. 173 and 150 in the two above examples respectively.
The final impact of HDEF on total damage is still not clear, but HTH.
Regards!
Case #3[]
Attacker 44ATK, 4 ranged dam, 400 LK's with racials.
Based on this table it looks like the (1 + HATK/100) multiplier gets changed to
max(0.3, 1+H/400) where
H = abs(D) - 3D
D = HDEF-HATK
which might be a bit complicated to parse, but the following is equivalent:
max(0.3, 1+X/100) where
if HATK > HDEF, X = HATK-HDEF
if HATK < HDEF, X = (HATK-HDEF)/2
but this doesn't quite match the results above.
