Darksteel Reactor is an alternate win condition that gets much more viable in Obeka's deck, Descent into Avernus is a group slug card that gives out treasures and pain, and in much greater quantities in Obeka
Probably the same reason people climb Mount Everest, do 24-hour live streams, or take ice baths
Anoint with Affliction: Exile removal that gets better as the game goes on Sheoldreds Edict: Having opponents sacrifice a nontoken creature is spicy Scheming Aspirant: A way to help proliferate heavy decks along a bit toward a win Necrogen Communion: Put it on an evasive body to enable poison kills and get the creature back again
Finally, thanks to Cairo, there is an experimental SVG output to be able to easily create vectorial schemes from the current camera orientation
In addition, Electric decks can't recover Energy as easily as other decks, which is what makes Switch such a necessity in a Pikachu & Zekrom-GX deck