Jayas Immolating Inferno is a similar exhaust spell for excess mana, although it does require a legendary permanent out
Her art on its own can inspire you to create cards around it, while the consistent style she employs is able to make for great bases for cycles
something like Flawless ManeuverFlawless Maneuver so you still have interaction when you tap out to cast Takeno or Teferi's ProtectionTeferi's Protection to keep yourself alive
Serialized Cards High collector value with artifact cards
Aside from the Treasure token, any of these rewards by themselves makes Beza, the Bounding Spring a strong card, but the fact that you could get multiple rewards or all of them really puts this over the top
The basic land art of Alayna Danner, Rebecca Guay, and Mark Poole all return in Commander Masters