Talk:Academy/@comment-31604751-20170410172440

I am at level 13 Academy, which requires 80 Iron to upgrade.

The Upgrade button is dithered out. I does show the 80 Iron requirement at the top.

I'm wondering what will activate that dithered button?

Will it activate when I hit 80 Iron in storage? Or do I need to run out all the dragons I have in training?

Or am I maybe missing some other requirement?