User blog comment:Emptylord/Custom Champion - Behemoth the Earthbreaker/@comment-7709681-20170429163531/@comment-7709681-20170430043321

But Sion does behave like a Juggernaut: Players know that if let loose he'll ravage the entire team even with tools that the others of his class lack (he's the only one with initiation, which draws him towards a Vanguard playstyle) or long (like his infinitely scaling health), resulting in fair windows of time with clear weaknesses that enemies exploit but still accomplish his role, as he draws the attention he wants, sustains himself in the process, and his team does the job.

Here is when still Behemoth's problem remains: Behaving like a Warden but with the weaknesses of a Juggernaut (for the case, lack of reliable CC, and problems to gap-close. In addition to this, he personally has an unreliable power budget).

For how his power is expressed, in order to be a menace he must force the opponents' attention to him or else his kit doesn't work, but lacks the means to do so as his skill expression evokes the opposite of his intention (as the opponent would rather ignore him until he casts R, to which they interrupt him and continue ignoring him) and yet his window of time is to unilateral, as it only favors the enemy team.