Red has a ton of great ways to create Treasure, from Descent into Avernus (also included in the Jaws Secret Lair) to Spiteful Banditry
Most of these cards have their uses, however narrow, and I can envision almost any of them hitting $4-$5 due to casual demand after a couple of years without seeing print
For instance, just a few weeks ago, it was Medicham V the card that went to jail due to its potential to get additional turns
This is the most generically good Red card for Cube in my opinion, as Red will always be putting creatures and artifacts into play
If you get an SIR from a box my understanding is that there will not be a second one in the box, is that true or is it actually random
Call from the Grave Call from the Grave can be a chaotic play, but also an impactful one