Flanking and outnumbering for Combat Advantage isn't an ally bonus. It's combat advantage, which stacks with ally bonus, but not more combat advantage.

I can agree with this whole heartedly. Which encounter are you talking about?

My take on it is that combat advantage is not a bonus from an ally, it is a unique combat advantage. It should stack with everything pretty much but itself.

That said, I think that if an ally cast a Benediction of the Gods of Nier (+1 on all prowess actions), an ally used Distract Opponent talent, and an ally used assist ally to help you hit someone; none of those would stack because they are all from the ally source.

Multiple assists shouldn't help (unless one helps to hit, and another helps avoidance) either. That said, there is a little precedence for the idea that multiple "assist allies" should stack since the section on assist ally on pg 313 specifically references skill cooperation on page 136, which specifically says that up to 3 people at a time may assist on a skill action.

I clarified up above. But spells stack and don't stack in different ways. Magic doesn't care where it came from to grant you it's bonus.

An ally casting Benediction of the Gods grants a spell bonus not an ally one. It would stack with distract opponent.

If an ally's spell was an ally bonus instead of spell bonus then I could have someone cast Benediction of Cadic on me and then I could cast Inertial Shield on myself.

Benediction is a Spell Bonus
Distract Opponent is a Talent Bonus
Asset Ally is an Ally Bonus

All 3 should stack.

John

I was thinking of the Serpent Encounter in Price of Honor. But I went back and checked the stat blocks. The Avoidance isn't nearly has high as I remembered. It was the FORT defence that was that high. Then only at High Tier. So I retract my statement about avoidances being too high. My appologies. It only seamed like a slug fest at the time. But in hindsight we had a table with fast weapons and that AR is a killer.

I would point out that a Tier 2.5 PC can have a avoidance base vaule of 35 if they have a 8 PR and 8 IN, take +2 to all stats at every level, and also take +1 to Avoidance every level, have a towershield or scutum, and have Masterful Defese. But they are paying a price for that in reduced abilities and advancement options. Plus, the +4 from the shield is avoidable with weapon tricks such as Bypass the Shield or Render Shield Worthless, or the shield is disarmed.

Just what I thought. Although, I understand the alternate opinion. It would be real nice if Pedro would provide some examples with the Erratta Ally Bonus rules so that we have some more consistency across tables. But in the mean time I am content with some known murkyness for Arcanicon.

How does that sync with the Errata pg 12, where it pretty clearly says,

"Allies (as in all Allies, not each Ally) are
considered their own source, regardless of where the
bonus comes from a talent or a spell. If two allies grant
you a static (+X) bonus to hit, the highest bonus wins
out, and if two Allies grant you a Die Bump to the same
Attribute, they also do not stack. There is an exception
to this; you cannot stack the effects of the same spell
or talent, even granted to you by an ally."

That makes things pretty strict. But it would help me to understand if you had some examples for your interpretation. Do you mind providing some?
EDIT: I note that is states STATIC BONUS, not Dymanic Bonus. Assist Ally and Distract Opponent are Dynamic Bonuses because they apply to a single attack.

I listed above my interpretation, that assist ally, distract opponent, and benediction wouldn't stack. I think the difference here between Static and Dynamic in the way that you mean (one attack vs. many) doesn't apply. The wording of the errata defines static, saying, "There are three bonus types: Static (a fixed bonus such as a +1 or a +2), Die (such as adding a d6 or a d8) and Die
Bump (increasing a die type to the next largest die.)" So static here just means any +X, so static vs dynamic SOURCE doesn't matter, if both apply a static bonus TYPE. So Assist Ally and Distract Opponent would not stack since they both give a +X to hit.