Not tryin to be metay, I had to look up the Ankheg stats for something else the other day, and I remember its touch AC being really low, which is why I was surprised that this one seems to have such a high one.
I need an acro check to move into melee range and avoid an AoO correct?
Cort can't quite get to it without eating an AoO so...
Cortland walked warily toward the creature in a hurried duelist stance. He'd seen it savage Kaavel and was rather worried about what else it might do. He stepped just inside it's reach and clanged his blade on the ground, hoping to turn the creature from his allies. "Hello Ugly... come get a meal." The young noble yelled with a confidence he didn't feel. Perhaps he could turn it away from his wounded comrade long enough for them to bring it down.
Realizing he's unlikely to close on the beast this round, Blaze moves forward till he is just outside it's reach. He then blasts the Ankheg with a beam of cold. Casting Ray of Frost1d20 + 7 ⇒ (10) + 7 = 17 Ranged touch attack for 1d3 ⇒ 3 Cold
Map will come tonight as I am no longer able to update them at work (different net server with different net nanny software)
Cort approaches the GBB and draws it's attention as Blaze fires a ray of frost impacting and chilling part of it's hide.
The ankheg shifts it's bulk and the powerful jaws snap at Cort...
Bite: 1d20 + 11 ⇒ (4) + 11 = 15
...while two of it's legs lash out at Kaavel and Grusk....
Slam (Kaavel): 1d20 + 10 ⇒ (8) + 10 = 18 for 1d8 + 4 ⇒ (6) + 4 = 10
Slam (Grusk): 1d20 + 10 ⇒ (3) + 10 = 13
...it's entangled bulk clearly hampered, though it does land a glancing blow on Kaavel.
GBB is now in base to base with Kaavel, Grusk, Blaze and Cort - but no-one is flanking at this point.
Grusk's swingy spiky ball of doom bounces off the ankheg's chitin again without penetrating while Doc's alchemist's fire lands true and starts up a growing blaze on the bug - filling the small chamber with acrid smoke.
Sentis takes a step back and prepares to engage the bug with leather-flung missiles.
Damage and catching fire I'll update at the end of round.
You can indeed take a move action to Acrobatics out and attempt to avoid an AoO.
Blaze lands a solid blow with his blade before dancing out of harm's way.
Cort stands stock still - in awe of the beast's size...
Reflex: 1d20 + 3 ⇒ (17) + 3 = 20
The ankheg is sorely wounded by this point and attempts to flee... albeit hampered by it's lack of mobility with Doc's resinous secretions gumming up it's undercarriage. It limps ponderously to the edge of the chamber and prepares to begin burrowing through the earth.
HP 31/31, Acid Resist 5, Fast Heal 10/10, AC 18, CMD 13, Fort +6, Ref +6, Will +0, Bombs 8/8, Init +2
Isn't it still covered in oil though? It didn't catch, but it's not gone. The bug hasn't wiped it off or anything, right? When it takes damage from the Alchemist fire this round won't it need to save vs. catching fire again?
For the record and RAW you can't use acrobatics while charging.
But this fight has lingered enough and as Doc said...
Doc's trust was well placed as Cort and Kaavel follow after the chitinous behemoth, bringing it down with their strikes even as the fire continues to burn upon the bug's back. The big bug is bleeding ichor and acid from the numerous punctures in it's shell and beneath and shudders in it's death throes.
Doc's peer into the area below does not yield any sign of further assault and all is eerily quiet.