So in the hydra battle, the first thing you have to do is kill ebon right??
Well, (me and my team experienced this twice btw), we killed ebon, and when he came back up, he didnt show up on the battle board and we couldn't attack him. assuming this is a glitch. thanks
Jack The Pirate
This is indeed a glitch ( if you had done a search on "Hydra", you would see that its been around awhile. ) It doesn't always show up, try again. BTW: the task is to defeat Hydra, you'll first wound it, it hides under the lake, then you must defeat Amethyst, Cobalt & Scarlet. The head will return, then you must defeat it quickly or it will hide again and then you will have to fight the other heads again and so on....