Let's say I'm working on custom cards for fun, within Magic's rules. If I had a new mechanic, would it be on-topic to ask a question about the rules implication of the mechanic?
For example, if I had a mechanic which was intended to make a creature's power always match its toughness after modifications. If I posted my initial definition: means that this creature's power is equal to its toughness. I'd receive an answer explaining how layers would make this wording not work, and how the ability could be worded within the rules.
By "well-defined", I mean that the question is not about how to balance the effect, nor seeking opinionated feedback.
This question refers to Magic, but could apply to any rules system.
Would questions like this be on-topic, as they help people explore and understand the rules, or off-topic because they don't answer questions about the existing game, and wouldn't be practically useful to the vast majority of readers?