Questions:

• What is the base mod? From the sprites I assume it’s vanilla. Version 1.9.x (with degradation) or 1.7.x (without degradation)?
• What’s the general goal of this mod? A continuation of the original PD?
• Will you make it playable on mobile? Release the source code?
• ETA: How soon is SOON^TM?

I’m not familiar with Sandbox Dungeon, but if it isn’t being developed by Evan, shouldn’t you ask the Sandbox dev to optimize it?

That would make Transmutation an interesting way to roll for high-energy upgraded Trinkets, which I suppose isn’t too OP, since you’re not guaranteed to have Transmutation.