Kizlev and Mr. Whiskers

[ranzunar]

Kizlev
Male Lizardfolk
Lawful Neutral Druid//Monk 4
Hp 30 (3d8+3)
AC 20 (+5 nat armor, +1 bracers, +1 dex, +4 wisdom)
Flat footed 15 Touch 15
Fort +5 Ref +5 Will +8
Str 14, Dex 12, Con 12, Int 7, Wis 18, Cha 10
Bab +3, Grapple +4, Init +1
Speed 40ft

Melee
Unarmed strike +6 (1d8+2)
Flurry of blows +3/+3/+3

Feats:
Evasion, Stunning Fist, Deflect Arrows, Combat Casting, Weapon focus Unarmored strike

Skills:
Concentration +9
Tumble +9

Spells Prepared:
(0)Detect Magic, Cure Minor wounds, Light, Mend, Read Magic
(1)Cure Light Wounds, Entangle, Produce Flame x2
(2)Animal Messenger, Barskin, Cat's Grace

Possessions:
Artificer's Monocle, Bracer's of Armor +1, 1 Scroll of Cure Serious Wounds, Wand of Charm Animal (50 charges)

Mr. Whiskers
Tiny male cat
Hp 20 (3d8)
AC 17 (+3 dex, +2 nat armor, +2 size)
Touch 15 Flat Footed 14
Fort +3, Ref +6, Will +2
Str 4, Dex 16, Con 10, Int 2, Wis 12, Cha 7

Bab +2, Grapple -9
Melee
2 claws +7 (1d2-3) and bite +2(1d3-3)

Tricks: Come and Attack

[streamofthesky]

Gabe, you misunderstood the change to the Tumble skill.

"Tumble:
When an enemy tries to tumble through your square, you may choose to use an AoO to make a tumble check. If you beat his check result, he fails to enter your square."

This only applies when someone is trying to tumble through your square, not around it. If Kizlev had taken Combat Reflexes as his monk bonus feat, he'd be able to counter-tumble any movement past his treatened area.

The added benefit to Combat Reflexes:
"In addition to it's other benefits, when someone tumbles through a square threatened by someone with Combat Reflexes, the character with Combat Reflexes may spend one of his Attacks of Opportunity for the round to make a tumble check, with a DC equal to the tumbler's tumble check result. If he is successful, the tumbler provokes attacks of opportunity as normal for moving through that square (from both the character with combat reflexes and other characters threatening that square.)
The tumbler may choose to stop his motion in that square to avoid AoOs. The character with Combat Reflexes may do this as often as he likes in a round if the tumbler continues to move through his threatened squares, as long as his dexterity score permits him enough attacks of opportunity to spend one for each opposed tumble check."

So, even with Combat Reflexes, you don't automatically stop the foe's movement. He can either stop, or suffer an AoO as if he hadn't used tumble and keep moving.

That said, I think I need to alter the wording of the feat errata after noticing a rule I hadn't till recently: "Moving out of more than one square threatened by the same opponent in the same round doesn’t count as more than one opportunity for that opponent."
www.d20srd.org/srd/combat/attacksOfOpportunity.htm#combatReflexes