Well...talk about an intimidating game!

[Jazzepi]

I'm playing the EA giants race, whose name I will not even attempt to spell correctly, and I have a giant with a chill of 25 there after casting breath of winter.

I would suspect that there is not a cap. Instead I think that what Edi was trying to do was akin to wearing an item that enchants the wearer with Breath of Winter, and then trying to cast it on the same unit, which is why they ignored it. I want to say that the Father of Winter that Lazy Perfectionist had attained higher than 25 cold aura, but I can't be sure.

Jazzepi