Sidisi, Undead Vizier is relatively affordable, Rune-Scarred Demon can fit into reanimator decks and costs less than $1, and Id happily pay the extra mana for Final Parting and get the extra entomb effect before I ever spend my turn on Diabolic Tutor
I run a similar deck with Linvala, Shield of Sea GateLinvala, Shield of Sea Gate as the commander you can check out here
There are a good amount of 2 powered creatures in Dominaria United it seemed, so Faithbonders 3 toughness helps it survive combats a fair amount
EDHRec.com is an excellent source for Commander info and can give you ideas on how to build your next Commander deck or tune an existing one
GODEEPER: Curious how Lorcana's collectible value compares to other card games before you open packs
As an added payoff, you draw a card whenever a creature you control deals combat damage to a player