@Riot: If you were to add E.T.C.'s Mosh Pit on a Champion, how would you balance it?
Mosh Pit
After 0.75 seconds, channel to stun nearby enemies for 4 seconds. Long cooldown.
That's the version used in Heroes of the Storm, and it is a damn powerful ultimate. That said, it has a lot of counterplay: you can dodge it during his wind-up, or you can interrupt him (of which there are many ways to do so). It also doesn't do any damage of its own, so E.T.C. needs teammates to capitalize on the CC effect. Lastly, it's pretty highly telegraphed when E.T.C. is going to use it, giving the enemy ample opportunity to counter it.
Now imagine if we had a tank Champion who, after a short wind-up, could channel to suppress all nearby enemy Champions for a short time. Would that be a total "fuck no" idea? Or would it be acceptable if it had enough drawbacks (cooldown, short range, easily interrupted) and lasted, say, 2.5 seconds max?

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