Spoiler: Round 1, Henri's Status
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Henri
Male True Neutral Half-Orc Ranger (Wild Stalker), Level 3, Init 1 (+2 in Jungle), HP 26/30, Speed 20 ft
AC 18, Touch 11, Flat-footed 17, CMD 18, Fort 7, Ref 6, Will 5, CMB +7, Base Attack Bonus 3
Greataxe +5 (1d12+12, 20/x3)
Breastplate (+6 Armor, +1 Dex, +1 Natural)
Abilities Str 18, Dex 12, Con 15, Int 10, Wis 14, Cha 7
Condition Power Attack

"Alright, that's enough," grunts Henri as his armor stops the attack from the construct-man. "Boring conversation anyway..."

Spoiler: Mechanics
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Activate Power attack and then attack: Greataxe (1d20+5)[9] to hit, (1d20+5)[17] (20/x3), (1d12+12)[13] slashing damage, (2d12+24)[39] critical strike damage.

AoO if applicable: Greataxe (1d20+5)[9] to hit, (1d20+5)[9] (20/x3), (1d12+12)[13] slashing damage, (2d12+24)[43] critical strike damage.