Thats Legendary Magician of Dark
When you add in time for rolling and wacky effects, Planechase Commander games can take a while, too, so you should probably expect to settle in for a little longer than normal, though some of the new planes really encourage attacking and moving the game along, so maybe less than you might think if you're used to Planechase Commander already
I tried posting these a while ago but had some technical problems so here is my attempt at revamping this old archetype
Ruthless Technomancer is an interesting combo because youll sacrifice your big Juri, generate lots of Treasure, cast it again, sacrifice all the Treasure for mana, and have your commander again ready to fight, almost as big as it was before
add 2 Arcana Force monsters with different names from each other from your Deck to your hand, also you cannot Special Summon for the rest of this turn, except Arcana Force monsters