If MST was added, would it be better than this? It doesn't banish, but it has no LP cost. I know some decks abuse the LP cost for skill usage, but most decks don't rely on that anymore. What are your thoughts?
Something not related to your question: if konami ever wants to sell MST it'll have to be in a minibox, if it is a UR in a terrible box (as cosmic) I'd get cosmic, since I may want to play a fusion/ritual deck in the future.