While he can certainly perform admirably within the context of this precon, I believe that youll probably get more mileage out of this deck by replacing Szarekh, the Silent King with one of the other commanders if you plan to upgrade this deck to play in higher power tables
At least in Commander he'll be restricted by only playing one of each of those lands, but you can also rely on getting Jodah out on turn four and keeping him out, so I suspect it's a wash, basically
Much like the new Jubilation, this massive Elemental buffs your entire board on entry, making it insane with Myriad
The catch is points cards are limited, and if other players grab them first, they might not be available to you later
You have another way to flood boards