I've been told that it takes about 10 rounds of 10 or full clears to fill it up. I was wondering if anyone has any data on how long a full horn lasts. Any help you can offer would be greatly appreciated.

Like for me im done lots of runs - doing them for around 4 hours - thats charged it for half of size. Maybe if you find better than "random" team it take less time.

What I meant was how long a fully filled horn would last doing agility or mining.

I believe it depends on your level, but from what I've heard, if you can find a good team that is good at Barbarian Assault, then it's worth it if you don't enjoy the skill that much.

What I've found to be fairly accurate is this formula:

 

[skill level] * [stage of horn (1-15)] * 1000

 

I think that's right... it's late, and I'm tired.

 

For an example, lets say I had a horn that's "nearly two thirds full" (stage 10). I use it to train a skill that's level 80.

 

80 * 10 * 1000 = 800,000

 

Therefore, the horn would last for 800,000 extra experience in said skill. (for 1,600,000 total gain throughout the course of its charge)

 

 

I hope that's not confusing...