He's a five color commander who cares about sagas: so much so that he caused price spikes for recently printed sagas, from fans keen to build a deck with him at the helm
This is because new cards are created all the time, creating a brand-new context for your cards every time that happens
// Sephiroth, One-Winged Angel Flying Super Nova As this creature transforms into Sephiroth, One-Winged Angel, you get an emblem with Whenever a creature dies, target opponent loses 1 life and you gain 1 life. Whenever Sephiroth attacks, you may sacrifice any number of other creatures
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The deck also benefits from the reprint Fire & Ice and features multiple Throne of Eldraine adventure cards to circumvent the cascade mana cost restriction
Just play more value cards that are good early if you are scared