Keskit, the Flesh Sculptor Keskit, the Flesh Sculptor gives you a way to sacrifice artifacts for fun and profit, the profit being some fantastic card draw
Its potentially useful in a homebrew Borborygmos Enraged deck I guess
A few copies of the colorless Omni-Cheese Pizza also came out, which helps with drawing extra cards, along with Guac & Marshmallow Pizza with flash that can untap and buff one creature on the fly
Alesha, Who Laughs at Fate Alehsa seems like a solid Rakdos reanimator commander
For example, a normal Commander might get better over time by getting counters on itself
In control decks her haste is often wasted as you need to hold back to block, her low toughness to mana cost makes her a weaker defensive dork and even though you will probably hit more expensive spells on average in the control decks than the agro ones the control decks are less redundant and so will have much more random outcomes