Once upon a time I remember having found rules in an oWoD book about a dice pool capping at 20.
I have always assumed that attributes and abilities cap at 10 (the highest an Antediluvian Vampire can have those scores at).
I cannot find any rules for this anymore, however.
The closest I can find is in Vampire, that no kindred can blood buff a physical stat higher than 10.
Now, let me give an example of this, in-play.
Game: Werewolf. Character: Lupus; Get of Fenris; Ahroun; Legendary Strength Merit. Enemy: Nexus Crawler.
So here's what happens:
The Fenrir has 6 strength, enters Crinos (wolf-man) form, which gives +4 Strength. Strength = 10. Uses the Gift Strength of Thor, which doubles your Strength. This might be useless, if there is a cap @ 10, or it could give you Strength 20.
Lets say you have 20 strength from that, then use a claw attack. Claws deal Strength +2 damage.
This would mean that so long as you hit, you would have a die pool of 22+. Unless there is a cap on your die pool limiting that to 20.
So are there these caps? Where are they printed? Is there anywhere that any of this is even implied?