So I'm running a Heavy Metal inspired Modern AGE game on rpol where the players are trying to stop a galactic apocalypse involving a mysterious pseudomagical force that nobody really understands and they will have to collect information on artifacts left behind by the apocalyptic force.

So anywho, on Earth the zombie apocalypse will be caused when a nuclear reactor on a military base goes awry. At the center, the players will discover a nuclear fusion core protected by a nanobot swarm. I'm thinking I want it to be a Magic Font that has more mana, but it can only be used for appropriate arcanas

The easy answer is to just say fire or lightning (but not necessarily both), but I'm here for suggestions for a different idea I had. What about a Radiation Arcana? What spells would it have?