Yeah, there have been countless combo decks built around pretty much the exact same set of support cards. Individually the support cards usually don't appear to

Yeah, there have been countless combo decks built around pretty much the exact same set of support cards. Individually the support cards usually don't appear to be a key part of any given deck, but to a large degree that's because no one would ever call a deck a "brainstorm deck" even if brainstorm was the central card the deck was built around. They'd name it after the other things that go well with brainstorm, because that's the part that's actually different.