The upside of the mechanic is that you have the ability to build a creature stack to your liking, whether thats making a small one with a cool ability larger or giving a larger one neat abilities
So, lets give the commons and uncommons a conservative value of $1/pack, the foil a conservative value of $3/pack, and lets assume that you can sell that sealed Ultimate Box Topper for $150, which adds another $6.25 per pack in value by itself
For all intents and purposes, its Jund (red, black and green) Shorikai
Untapping an artifact is often a lot more valuable than tapping one, and making a creature unblockable is a lot more useful than goading one
This can help strengthen creatures and trigger effects to put opponents in tough positions
This shell is unlikely to get anything banned just yet, so we may need to set it aside for a couple weeks down the line, but it has the speed, resilience, and flexibility to make it a promising lead in the new format