There's an argument that this deck should be running creature-based 2-card combos like Mikaeus, the Unhallowed and Triskelion rather than an enchantment-based combo that The Underworld Cookbook can't help with
Add in utility lands like Mystic Sanctuary, Witch's Clinic, and Cephalid Coliseum, and youve got a base that actively supports your game plan
Nice synergy with Boo and others, and then you can -2 them to sacrifice a dork you control and shoot a target where that was its power, another cool way to play into Boo who just got built up last turn and you'll make another for free, so that's fun synergetic card that...can be your Commander
These zero mana artifacts are functionally lands, coming into play untapped and letting you tap them for their associated color identity
If the effect stops the token from attacking a specific player unless a cost is paid, you don't have to pay that cost unless you want to attack that player