OSR: Radiomancer

Perk: You have set of clothing which works as a Hazmat suit with built-in wizard hat, protecting you from external radiation. It does not give you armour value, and ceases to function when damaged, though you know how to repair it.

Drawback: Constantly working with radiation has left your genetic code more like a genetic guideline. -4 to saves against mutations.

If you spend five or more consecutive rounds in high radiation, you must roll on the included mutations chart, or any chart of mutations your DM is fond of.

Radiation fields can be found ‘naturally’ in the world, in various kinds of locations. At the back there is a list of d10 random radiation-themed locations that you might encounter.

You absorb the light of a light source and multiply it into a vast swathe of electrons, firing them as a bright blast: the target takes [sum] damage and must save vs CON or be stunned for [dice] rounds. The light source is dimmed an unusable for one round.

You tag a creature with radioactive isotopes, affecting it with radiation for one round and allowing you to locate it baseed on radioactivity within 200’ for the duration of the spell. The creature cannot conceal itself from you as long as it is affected by the tag. You can keep tabs on [dice] creatures this way.

You spend an amount of magic dice to generate a high-energy radiation shock, which energises an ally’s spent magic dice, and refills them by the same amount of dice you spent. However, if these refuelled magic dice are not used by next round, they fall back to their ground level, and affect your ally with a round of radiation per die that has decayed.

Though your capacity to clean up your own radioactive mess is very limited, you can strain yourself to suppress a radiation or wave type in a small area as long as you concentrate. Moving does not break this concentration. This spell can suppress: 1 [dice]: Radioactivity 2[dice] Photons (light) 3[dice] Sound and minor heat 4[dice] Telepathy.

You can precisely direct ionising radiation to break up molecules in a target. You can target one specific type of compound, like a poison or alternatively an important enzyme, and make it fall apart, rendering it useless. This spell is not powerful enough to overcome the body’s capacity for repair, so its effects will never last for more than [dice] rounds when targeting a compound native to the body.

You can scan a creature’s body or a compound, gaining full oversight of its insides (its structure, irregularities, poisons, mutations, embedded objects etc) at the cost of affecting it with radiation for one round, unwilling creatures may Save vs. CON.

You spray out radioactive isotopes that emit ionising radiation, causing a 30’ cone in front of you to become affected with radiation for the duration of the spell. Spraying this into a liquid or gas will cause the radiation field to move as the liquid/gas moves.

You forcefully blast out a field of radiation along with hot steam that obscures vision. The heat of this steam deals [dice] damage to anyone within the area of effect for each Magic Die you have already used that day.

You touch a creature and create a source of alpha radiation within its body. Because of its low penetration power, alpha radiation from an outside source is not very dangerous, but when it is inside the body it is extremely destructive. The affected creature must save vs CON or lose [dice] HD for [sum] rounds.

You fire a blast of highly energised radiation at a target, dealing 2*[dice] damage and a round of radiation. If the target also has Magic Dice or a variant, one of their Magic Dice is consumed to deal 2*[dice] damage and a round of radiation to two other creatures within 30’ of them as the radiation activates their MD and tears it loose from the caster. This effect will continue to chain as long as there are creatures with MD that the spell has not affected yet within 30’ increments of previous targets. This effect does not differentiate between friend or foe.

When an enemy casts a spell or uses an ability that uses Magic Dice or some variant of it, you may invest an equal number of dice to create a positron to their spell’s electron, an anti-spell, which interacts with the enemy spell and neutralises it. The enemy is affected by radiation for [dice] rounds.

You make a creature with more HD than [sum]/2 save vs. death (creatures with less HD than this get no save). If it fails it explodes into nuclear slag, making its corpse the source of a radiation field that extends in a radius of 50’ around it. Rolling maximum on (one of) your dice causes all other creatures (friend or foe) close to the exploding target to take [dice] damage from the blast fallout and fail their first save against the radiation. The radiation field only fades over a [dice]*[sum] days, and only once the corpse is encased in lead.

You blast a creature with immense amounts of mutagenic radiation, turning their genome into a jell-ome. The target rolls on the included (or any other) mutation chart twice taking the most hampering result, [dice] times.

1. Your genetic code finally gives up and goes home. Roll twice on the mutations chart and take the most hampering result. Repeat this until you have three new mutations. 
2. You become a being of radioactive sludge and bones, bound inside of your hazmat suit. It is considered your new skin. If it is broken you start leaking out, taking 1 damage per round until you plug the hole. People who touch your gooey self are affected with radiation for a round. 
3. Somewhere inside you a metaphysical reactor hull cracks. You explode into radioactive slag and cause a permanent radiation field in a 50’ radius around your corpse. You remain semi-existent as a radiation ghost, and can only communicate by throwing off measurement equipment and talking through radio static within your radiation field.

You can avoid this fate by building a body that is mechanical, with plenty of lead in it. Who needs that pesky DNA anyways? Better keep your brain though, can’t let anything happen to this genius.

1. An open grassland, marsh or tundra with a small shed in the middle, devoid of animals and completely silent. Leftovers of fencing mark the start of a large radiation field surrounding the shed. It contains logs of a secret project. The dates are confusing, they are from long ago. 
2. A ruin made of a strange smooth stone with iron bars inside. It has large towers and contains contraptions that you do not understand. 
3. An open staircase into the ground. It leads to underground shelters where skeletons lie in beds and sit at tables. 
4. A cenote at the bottom of which strange rock and metal formations like stolled lava sit in the sunlight. 
5. A smooth and round tunnel of enormous proportions. From its bending shape it would seem to be a circle. Some devices there still work, and carry out their task without concern for you. Be careful not to get in their way. 
6. An underground mine where metal cylinders sit stacked onto each other in vast quantity. What do they contain? Opening them will activate old security machines. 
7. A site of many buildings and roads, most made of the smooth stone. Its it a village? A city? There are structures whose purpose is entirely unclear. Old machines shout voice commands and static at repeating intervals and times of day. 
8. A structure at the sea where radiation washes out from the part of it that has sunken into the water. At its core there is a bizarre molten shape like a great elephant’s foot, which emits deadly radiation and massive heat. Strange locals use its presence to boil water. 
9. A dockyard of smooth stone and metal which houses an iron whale. Within the whale there are old machines and an object that somehow exhales an aura of terrible foreboding and doom. 
10. A fist-sized perfect metal sphere inside of a large crater. At night it emits a blue sheen. Locals either fear it, or bring it offerings of animals. Due to the latter the crater is bordered by a circumference of cattle carcasses.

Notes:

Our first submission from an outside source, this class was the brain-child of Monsieur after a week of cramming for a radiochemistry test. It is some hella rad stuff that I think would work great in VotE, Post-Apocalyptic Fantasy, or just wizards doing wizard shit out there in the wild. If you like this, check out Monsieur’s tumblr linked at the top of the page! Also for more fun, check out Skerples take on the Archaeans.