[caliaca]

Obscure isn't totally useless, it's fine if you're willing to trade 3M for 3M. This can often be perfectly fine in the case where you're running twin dance and easily able to get 2M from crits in your turn to give you an overall M advantage. In that case, obscure is quite useful because it means the other person will be continuing to spend a greater amount of M percentage wise than you are.

This is less useful if they're ghost or can match your extra 2M from crits. That makes it totally useless.

I do however generally agree with what you're saying though. Give it some gap.