I like this, can be played with mostly low HP creatures on your side (once more are made), makes Fireflies the bomb, since they lose 1 hp at most, while your opponent's creatures get closer and closer to that lonely Thunderstorm

Btw, I like it much LESS if made a

card, mainly because of the shield and the fact that

's creatures are very small already...this needs to have at least a *little* drawback, right?
I love the new cards soooo much more than the originals, too! I personally love the idea of making the upgraded inferior to the unupped in some ways, yet better in others...it makes it more of a challenge when deckbuilding of 'Which one do I use', while also basically giving 2 NEW cards to use, instead of 1 upped/unupped, since they aesthetically work very differently in different decks.