i

same thing with fahrakin, 2 out of 2 tries it froze the game

I don't think it's the ally attack... I think it's one of the champs that hit during the ally attack.

Tombloard will freeze on Dreadhorn with or without the ally attack. It just so happens the ally attack causes him to, well, attack.

I can ally attack fine as long as I don't use Tomblord on the team... So.. it's probably other champs, not the actual ally attack.

It is ally attack and the way it combines with the evil eye mastery. If the evil eye has not yet been triggered on Bommal when the ally attack occurs, the game locks up. We have reported the bug and Plarium is working on it.

My suggestion for now, while they work on the bug, is either remove evil eye or ally attack, or make sure your evil eye champ has gone BEFORE they are forced to lly attack.