It would at least provide interesting tradeoffs with the lily system, though I can see a rabbit hole of endless arguing about efficiency with holding lilies for the damage spell only, the problems inherent with mixing damage and healing resources, etc. It wouldn't be a bad start, but it shares a quibble with Energy Drain: it's got an obvious uneven disadvantage so long as AST and SGE have no opportunity costs, and can just do whatever for free. Still, it's orders of magnitude better choices than "I'll just overheal the currently 100% HP tank between trash packs because that's, silly though it is, the best decision here". I'd also love it if they solved the Glare Glare Glare issue, but I fear that's going to be the last beast we slay if we can even bring them around on it.