exp boost

yo,

is it possible to buy exp boost on warmane's frostmourne s3?

If you mean to buy some potion or anything that increases your xp rate no

I mean to buy from site .. like double exp boost.

been looking on store but I just cant find it.

Greetings,

I doubt there's any xp boosts, the exp rate is already high at x7.

There is no EXP boost beyond the increased XP rate of Frostmourne, or any other realm.