alright so, after poking on the listed lizard
1) it does not have SDT
2) swipe is not effected by resistance rank
3) my formula was wrong, and I think I fixed it.
I switched to Epeolatry which is stronger than the great axe I was using, plus it has mdamage which helps confirm things..
new proposed formula:
floor((floor((Mainhand weapon skill + 1 )* (0.7 + SwipeBonus))+Magic Damage) * magic terms)
This needs no
additional MAB. It seems I did wrongly assume the "bee" page on bg wiki was giving me 130% SDT for fire, hence that 1.3x bonus in the OP.
floor(floor((709 + 1)* (0.7 + (51/256))+186)*1.00) = 823
add 1 MAB:
=floor(floor((709 + 1)* (0.7 + (51/256))+186)*1.01) = 831
and testing on a wind elemental...
switch to greataxe:
floor(floor((656 + 1)* (0.7 + (51/256))+0)*1.00) = 590
add 1 MAB:
floor(floor((656 + 1)* (0.7 + (51/256))+0)*1.01) = 595
(I switched to +1 MAB in this shot for the second attack)