Hatred aura - Allies don't gain "your" physdmg as cold but their phys dmg as cold instead

It does not specify in the description that all the allies gain the damage based on the physical damage of the caster. The "your" used is plural. Due to English not specifying this, and "damage" not pluralising in this case, this is ambiguous when written in English, and we have to rely on people understanding that it works like all auras - applies a buff to each entity that is affecting only that entity.

If I say "You should take of your hat", it's clear that "your" is used in the singular. If I address a member of a group by saying "You and your friends should take off your hats", then it's clear (from the plural of "hats") that "your" is plural - each of your friends should take off their own hat, not all of them trying to take off your (singular) hat.
But because English uses the same word "your" for the plural and the singular case, we can only tell this from the plural "hats", and not all words pluralise like that to disambiguate. If instead I said "You and your friends should comb your hair", then because "hair" in this context is a collective noun and does not pluralise, the phrase is ambiguous - it could be interpreted that each person in the group should comb their own hair, or that you and all your friends should all only be combing your (singular meaning) hair, and your friends don't need to comb their own, just yours. The only way to tell is from context.

"Damage" is similar to "hair" in that it doesn't pluralise here, so we're left with an ambiguous phrase due to English not bothering to differentiate different forms of "your". This would never have happened in Latin, but I don't think Chris would let me change the game's default language to Latin at this late stage, for multiple reasons.