Me? I've been running the Fire Mark variant for Deflag. It's just a shame that there isn't much else to use that excess Fire Quanta.
Agreed on the problems with steel.
As for those Fire Quanta: Following a suggestion, I've begun bringing a fire shield into the battle. Mainly a (highly situational) counter to hope/ray of light spam, but it can be useful in certain other situations, too.
Not a bad idea. I'd been using Fire Storm, actually. It's only a one-shot, but frankly if you need to kill something with more than 4 health that Buckler would handle, you might be fixing to take more damage than you should. So it's sort of a trade-off. Of course... every time I
meet RoL/Hope it's the bottom card in my deck! >:/