plurb elite ball knowledge
virs has tmp2 of 131 and sing too so virs think it was sing before infection
BTW I'm on mobile and can't actually use the tool to examine elements or whatever that is.
Virs uses tmp2 to designate what it's supposed to turn back to and tmp3 to decide whether it can infect anything. This, I believe, is ice with a ctype of virs, a high tmp, a tmp2 of sing, a tmp3 higher than 1, and a low life.
Basically exactly what plurb said
virus is designed to store all propertys of anything it infects so it can return to normal when cured, for some reason it doesnt use ctype which means that you can create snow that turns into virus that dies and turns into sing that explodes