i think its sort of like mana worm (
http://elementscommunity.org/forum/index.php/topic,15279.0.html), but when it absorbs
![Entropy :entropy](https://elementscommunity.org/forum/Smileys/solosmileys/../../../images/Misc/entropy18x18.png)
from the opponent, it deals damage. yeah, its pretty much too powerful as is, if this is the case. mana worm is similar/smaller and doesnt have the damage done component. to balance this card, i would suggest dropping down its cost to ~3, its attack|hp to 1|3, and then have it do 2 or so damage if the quanta it destroys is
![Entropy :entropy](https://elementscommunity.org/forum/Smileys/solosmileys/../../../images/Misc/entropy18x18.png)
for the base card, and then make a small beneficial adjustment to the upgraded card however you see fit.
also, be sure to link the art source, if it is copyrighted make sure to ask the artist directly for permission to use the art.