Pillow fort decks are more about staying passive and focusing on defense
Vilis, Broker of Blood You know whats good to have with Razaketh, the Foulblooded sacrificing creatures around and having you lose life
This is a variation of a deck that was popular last format called Tera Box. A Box style deck means that you have many different attacking options to handle the entire meta
Cards like Artificer's Assistant and Jhoira, Weatherlight Captain that care about casting historic spells wont trigger with artifact lands, while cards like Board the Weatherlight and Lost to Legend that interact with historic cards or permanents can interact with artifact lands
Tyvar's first ability doesn't grant haste to any creatures, nor does it allow you to attack with creatures as though they had haste
The card that definitely needs to come in is Mischievous Quanar, which has led to some hilarious and epic games in my experience