Blitz2, Swdtech2, Morph2, etc...

That the spells need to be consecutive isn't necessarily a real restriction. Blitz and SwdTech are programmed to look at consecutive spells, but (given adequate space) it wouldn't be too difficult to reprogram them to retrieve spell IDs from a list instead, like MagiTek does.

There is the issue of getting the correct name to display when the attack executes... in the worst cases, retrieving garbage data for the name can cause the game to hang for a good while. But this will be an issue regardless of whether you have consecutive spells or a list...