mtg arixmethes commander deck EDH Deck Arixmethes, Slumbering Isle 100 Magic Cards Custom Deck Simic Powerful Kraken As long as Arixmethes has a slumber counter on it Commander 2018 Deck Tech: Arixmethes,

I love that the ability is at instant speed and only requires you to build up a decent mana base

That is a shockingly good value

You dont have white to blink it, but you can lean aristocrats and toss in Feign Death, Supernatural Stamina, and similar effects to repeat that ETB

Board wipes (Blasphemous Act, Deadly Tempest), reanimation (Dredge the Mire, Rakshasa Debaser), removal (Terminate, Soul Shatter, Feed the Swarm) this deck does everything a black-red control deck should do before throwing in a good amount of ramp (Mana Geyser, Burnished Hart, Worn Powerstone) and card draw (Theater of Horrors, Ambitions Cost) on top of that