I've been enjoying using an
nymph/UG deck recently, but I believe I've found a glitch.
Periodically the nymphs will not deal their attack damage. It took me a long time to confirm this was an actual glitch and not just me mis-remembering HP totals, but last game I got pretty clear confirmation.
I was playing against AI4, and had cleared the field so that the AI only had pillars in play-no defensive cards, weapons or creatures of any kind. The AI was at 9 HP and I had a non-upgraded
nymph and an Eagle's Eye in play for a total of 13 damage. I ended my turn and the AI survived with 2 hp remaining.