The deck certainly looks absurd in SaffronOlive's video, below: You won't face any MTG Arena decks running Soul Spike just yet, as it's not yet part of the platform, but everything from Modern Horizons 3 will be legal in Timeless and Historic
The four-cost uncommon will draw two and then lose 2 life and make a Black Wizard dork and then pump them with lifelink and power too
A 2/2 wolf is nice, fair and something you can put to good use in deck design, it is just a shame it is paired with something so annoying
I suspect Kindred Dominance is most likely to show up in Vampire Tribal decks, but Zombie decks might also find success with it as well
or black, featuring more removals and discard spells
However, when played correctly, this planeswalker can control the game and lead you to victory with her ability to manipulate permanents and leverage unique synergies