Did a small-sample parse N=115 +/- 5 attack rounds. 114 with no wyvern EXP bonus and 120 with 1000 EXP bonus on DC Bluffalo, the lowest level they can spawn I imagine since nobody was fighting them except me and I only fought two. The only thing is Atma of The Stronghold which has +40 attack on it which could skew the exact damage increase from the EXP bonus(actually maybe not since it was on always so it's a constant)
Anyway it SEEMS from the data that the Wyvern EXP bonus enhances:
Attack and or DMG(I can't tell, would need to redo this on weaker mobs where the wyvern has capped pDif/Cratio but it's tedious because the Wyvern kills most things of the sort in 2-3 hits).
Accuracy
Evasion
Breath Potency
*Defense(I suspect defense is enhanced but the sample size is far too small and within margin of error.
http://img854.imageshack.us/edit_pre...&action=rotate
Vs Bluffalo Wyvern 0 EXP
Accuracy: 93.33 %
Melee Damage Average: 50.65
DPS:8.55
Critical hit rate:8.04%
CritLow:83 CritHigh:111
Average damage taken: 51.04
Damage taken low:36 Damage taken high:62
Crit taken%: 4.20%
Evasion:25.88%
Raw data for Attack Detail:
Spoiler: show
Raw data for Defense Detail:
Spoiler: show
Vs Bluffalo Wyvern 1000 EXP
Accuracy: 95.86 %
Melee Damage Average: 72.82
MeleeLow:52 MeleeHigh:92
DPS:13.52
Critical hit rate:5.67
CritLow:105 CritHigh:126
Average damage taken: 47.64
Damage taken low:35 Damage taken high:58
Crit taken%: 5.38%
Evasion: 35.18%
Raw data for Attack Detail:
Spoiler: show
Raw data for Defense Detail:
Spoiler: show
http://images.uesp.net/thumb/a/a0/H_...x-H_letter.png