The question is always going to be whether its worth it to pass on Umori, but its hard to fully leverage a four-mana creature with no immediate impact against the controlling options in the format
Booster box contains 30 boosters
Cheap removal like Dead Weight seems to fit nicely, as it allows us to use all those extra cards we get from Notion Rain
Its standard variant is much more reasonable, at around $11
The card captures the electricity of Reno, the helicopter they flew in on to stop the gang from preventing the plate from falling, the burning in the background as the building is shot up as forces clash, and the pivotal moment before the falling plate ends it all
As such, holiday cards arent legal in any 60-card formats, nor are they technically legal in Commander