This actually makes Myrkul quite strong in conjunction with a handful of cards from Shadowmoor
Our Take: Heat Wave Arena Sets A High Bar Lots Of Fantastic Alternate Art Cards To Choose From If You Can Find The Cards While I'm somewhat disappointed that cards like Ethan's Pichu and Misty's Gyarados didn't receive an alternate art treatment, I'm very much a fan of what I've seen of Heat Wave Arena so far
This list might want a little more removal maindeck, and Im not sure about Rite of Belzenlok, but this deck looks like it might actually have some game to me
But copies of permanents are also subject to the legend rule
This has already gone up in the time since TCG Player posted their pull rate estimations
It's clearly intended to be a two-turn combo attack, but including other ways to Poison it, like Brute Bonnet's Toxic Powder ability , allows you to hit harder faster while taking advantage of the tricks available for Poison in the current format