OOC: You are right about the one action.
Round 346: ZD evades the lightning partially (22 Ref save), but takes 8 electrical damage. ZD has 110 HP remaining. Eyruaad can breathe again next round.
ZD performs a partial charge, biting for 11 (rolled 28+2=30 for charge). Eyruaad has 65 HP remaining.
Round 347: Eyruaad breathes for another 7. ZD has 107 HP. ZD misses (natural 1).
Round 348: Eyruaad breathes for 15. ZD at 92 HP. ZD breathes for 4. Eyruaad has 61 HP.
Round 349: Eyruaad breathes for 18. ZD at 74 HP. ZD bites for 10. Eyruaad at 51 HP.
Round 350: Eyruaad hits 5 times (worst roll 19) for 18. The wing buffets seemed to have no effect (DR greater than 5). ZD at 56. ZD breathes for 5. Eyruaad at 46 HP.
Round 351: Eyruaad breathes for 4. ZD at 52. ZD breathes for 3. Eyruaad at 43 HP.
Round 352: Eyruaad hits all 5 times (worst roll 15) for 13. ZD at 39. ZD bites for 10. Eyruaad at 33 HP. The wing buffets will have no effect, so I will not even roll.
Round 352: Eyruaad hits 3 times for 20. ZD at 19. ZD breathes for 4. Eyruaad at 29.
Round 353: Eyruaad hits three times for 20. ZD is destroyed. Eyruaad has 29 HP, is at 60N30E, and can breathe next round.
A huge sheet of black oil flows quickly to 60N35E. Its stench is so unbearable that Eyruaad is nauseated (rolled 12 Fort save, can only take one MEA per turn). Eyruaad can also feel a multitude of cilia tickling him, but avoids any effect of them (rolled 23 Ref save). The oil exudes a tentacle, which strikes Eyruaad (rolled 26+2=28 for charge), inflicting 15 bludgeoning and 4 acid damage. Eyruaad has 10 HP remaining, and is first in round 354. I will let him know when he is feeling better.