I think the problems in this deck are:
- Shriekers make the deck really big, which obviously slows down the deck
- Very unnecessarily heavy on gravity pillars despite not much uses
- (Personally, thought that the deck looked a little messy with some single cards)
Went over to the trainer and QI calculator, and came up with:
Hover over cards for details, click for permalink
55k 55k 55k 55k 55k 55k 55k 55k 55q 55q 55q 55q 55r 55r 55r 58o 58o 58o 58o 58o 58t 58t 58t 58t 58v 58v 590 590 590 590 8ps
- Got rid of charger, pendulum, and gnome, as they didn't seem too useful
- Got rid of a lot of gravity and earth pillars
- Replaced shriekers with graboids. Although this process may slow you down, it can be balanced with the fact that there are less pillars
- Added a bit more momentum, armor, and pulvy
If you wanted some to add some more cards (fat version), I would suggest that you add some gnomes (also as a shield for shrieker)and some other useful earth cards (or gravity pillar and cards like black hole
![Laugh :))](https://elementscommunity.org/forum/Smileys/solosmileys/laugh.gif)
As for the arena special spin, there seems to be about 5 random cards chosen for each special spin, and if you get lucky, you win one of them
![Tongue :P](https://elementscommunity.org/forum/Smileys/solosmileys/tongue.gif)