Well, Animate Dead allows you to bring a creature back to the battlefield from either your own, or your opponents graveyard and place it under your control
Enchantress cards are good but don't be over-reliant on them is what I'm saying
Nahiri, Heir of the Ancients Nahiri, Heir of the Ancients comes with three useful modes for the Equipment deck and Warrior Equipment deck, all which you can use the turn you cast her, and none of which immediately uses up all her loyalty counters
While X spells don't always thrive there, given the prevalence of "cast without paying its mana cost" effects that like to cast them for zero, many consider ElectrodominanceElectrodominance worth the risk because it allows you to burn an opponent out with all the mana you've acquired from your rituals, then tack another spell on to continue the process for others
The only problem with the Urzatron is finding them in a 100-card Commander deck