Lol, EvaRia, that's some pretty insane
![Light :light](https://elementscommunity.org/forum/Smileys/solosmileys/../../../images/Misc/light18x18.png)
generation there. xD
Anyways, I'm thinking of changing it back to "affect enemy creatures only." C'mon, 7/5 is way too expensive for a card used to give all the opponent creatures adrenaline, this will most likely see use in mass adrenaline rushes..
I think 3/2 cost for adrenaline all enemy creatures is balanced. A single diamond shield kind of negates all the extra damage from adrenaline, anyways..