I have not seen positrons suggested like this.
HANDLE: POSI
TYPE: Radioactive/Energy
They behave like ELEC in movement, thermal transfer and what it can pass thru or not.
They anihilate with ELEC and make pressure.
They react with DEUT to make HYGN. This is the most important feature to me.
Cancels SPRK in conductors.
Breaks battery to BMTL (maybe)
Not affected by AMTR (maybe)
ok i really like how it would react with elec, but it would be more like snow singularity when the tmp is -1000 just all teh particles are llight particles. a positron is an antiparticle=one property is the exact opposite of the same property in another lepton, so contact between those two would release the energy that holds them together, which is more than 1000000 nukes, all in the form of light=no pressure.
Actually, if it is just one positron and one electron reacting, the only result would be two gamma ray photons, the energy of each is outmatched by the decay of many different radioisotopes. This reaction would only be explosive if you somehow got a large quantity of positrons to react.
Thanks. I am thinking more about game mechanic than realism.