I'm aware that the limit for buying runes per 4 hours is 25k. However, does limit take place for all types of runes you buy within those 4 hours or just for each type of rune? Example: I am able to buy 10,000 Law runes and 15,000 Nature runes per 4 hours OR I am able to buy 25,000 Law runes and 25,000 Nature runes per 4 hours