Oh, just saw your reply.
Sometimes comments get buried deep in the thread (really starting to think we'll need that Discord server soon).
I did consider adding a light upgrade to the Dojo, but I'm still stuck on finding a name that fits the overall Dojo theme. Currently we have Power, Stamina, and Regeneration. Something like "Light" training feels a bit off. Still brainstorming on that one.
As for the Sanguine Signet, that's actually intended! I wanted different turtles to come with their own perks and trade-offs, which means certain equipment will synergize well with some turtles, while others might be totally incompatible. Adds a bit of personality and strategy to builds.