We sort of glossed over this news as WotC for some odd reason dumped ALL the big news all at once making it a bit difficult to absorb and process everything (think squirrel after a double-shot of espresso)
The immediate benefit can be good, but its value really lies in the freedom to plan your turns around alternating between Kayas first two abilities to buff your tokens with a +1/+1 counter plus deathtouch (a relatively rare ability among tokens), and doubling the number of tokens you create
This ensures every draw is a matter of chance
If you do, draw a card, then you may put a creature card and/or a land card from your hand onto the battlefield
In the early game, Revival is a great way to get a creature lost to some early combat or forced discard out on the battlefield
Be'lakor, the Dark Master, despite its wonky ETB effect, is the perfect 3-color legend to lead any demons typal deck, as well