As an immediate action, Aven will spend 2 tension to ignore the staggered condition for 13 rounds, and 3 tension to gain +3 to hit and damage for the round. He heals from fire damage, so he got a lot of mileage from the casks dousing him. He's got 148 damage that's sticking around; the rest was healed. None of the combat maneuvers against him succeeded, though the trip from the big statue was only off by 1. Also, quick side note for Llyarden, you don't need to roll standard attack rolls for Aven if you want to save yourself the trouble. He doesn't dodge them, and is immune to critical hits, so standard damage is all that applies.
He'll expend his drunk status to avoid provoking AoOs, then move down 20 ft. as a free action with swift movement to AA 30, picking up the remains of the big stool along the way. With his off-hand attack, he'll attempt to trip I3.
His attack action goes against the big statue, triggering Spell Sunder, Rippling Blow (spent on a Dirty Trick), Follow-Through for a reposition, a couple trip attempts, and another attack from breaking the big stool. He'll use a striker art to spend 2 tension to make another dirty trick as a free action against the big statue.
Finally, he'll, use Quick Force to make a reposition maneuver against Cask 5, Perpetual motion to make another, and the Brute specialization to attempt a grapple after each of those. He's got 35 ft. of reach (though he only threatens 15 ft.), so he can still reach them. He's repositioning Cask 5 into Table 7, so they both take Hammer damage. At that point he drinks, either from Cask 5 if it worked this time (he can drink anything and get drunk, so the flames aren't a big problem), or from one of his other drinks to regain the drunk status.
Spoiler: rolls
Show
Off-hand trip against I3: (1d20+85)[104]
AoO if it succeeds: (1d20+60)[65]
Damage: (8d8+38)[76]
Attack against Big Statue: (1d20+60)[70]
Damage: (8d8+38)[67]
Improvised Martial Arts attack: (1d20+61)[77]
Damage: (6d8+32)[52]
Reposition attempt: (1d20+104)[116]
Hammer damage on Aven and big statue is 3d8, + 3d8 for every 5 he beats the CMD by.
Spell Sunder: (1d20+80)[93]
Trip attempt from Brute conscript specialization: (1d20+85)[101]
Trip attempt from Improved Atavism (Animal): (1d20+85)[105]
AoO if either of those succeed: (1d20+60)[71]
Damage: (8d8+38)[61]
Dirty Trick empowered by martial focus, dazes on success: (1d20+79)[82]
Dirty Trick from striker art, blinds on success: (1d20+79)[89]
Reposition Cask 5 into Table 7 1: (1d20+104)[116]
2: (1d20+104)[122]
Hammer damage: Both take 2d8, +2d8 for every 5 Aven beats Cask 5's CMD by.
Grapple check Cask 5: (1d20+79)[91]
Pin Check: (1d20+79)[92]