I've been playing with Cake, and as well as being one of the most fun decks to play, it's extremely versatile and can deal with so much. Of course you need to use Absol Prime for it to count.
I wouldn't accept the autoloss, you need to get a decent amount of damage on it with Kyurem, then Gatr it, or you can play Eviolite and Defender, hope they attack and/or don't have pluspower.
Also, at Amphy, do most lists run Dodrio? I've never found a use for it when I play, I gave up on it long ago.
Absol prime....hmmm
But do you run something in order to deal with putting pokemon in the lost zone?
it seems to be a good card to go with Kyurem, more so than Victini, it seems Absol would be in a differet type of deck though, one that would be without gatr.