Sweet art. Not sure what to think of it yet.
![Gravity :gravity](https://elementscommunity.org/forum/Smileys/solosmileys/../../../images/Misc/gravity18x18.png)
and
![Entropy :entropy](https://elementscommunity.org/forum/Smileys/solosmileys/../../../images/Misc/entropy18x18.png)
are a kind of strange combo most of the time. I could see the upped version being OP in Discord-BlackHole decks. I most like the idea of double poison, and I think the unupped would be sweet in a lot of rainbows: powerful, but hindered in terms of its CC ability by the same slowness that affects Plague.
I think you should make your mind up on the radiation thing. Just poison sounds fair to me, in which case I would just phrase it like
![](/images/Cards/Plague.png)