This deck was made for fun, not the arena. I suppose you could try it in pvp if you wanted.
The theme of the deck is that all the non-pillar/pendulum cards all cost 5, whether upgraded or not. I made similar decks for costs of 4, 3, and 2, but I'm only posting this one for now. My question for you is, what's the best combination of 5 cost cards to make a fun yet competent deck. Competent in this case being able to beat AI3, even better if higher.
Hover over cards for details, click for permalink
4sa 4sa 4sa 4sa 4sa 4sa 4sa 4t7 4t7 4t7 4ta 5c4 5c9 5ie 623 6qq 6qq 6qq 6qq 6qq 6qq 6qq 6qq 6tt 71b 745 746 74b 7dq 7gu 7k5 7n5 7q8 7td 7tf 8pn
Hover over cards for details, click for permalink
4sa 4sa 4sa 4sa 4sa 4sa 4sa 4t7 4t7 4t7 5c9 5ie 5ol 623 6qq 6qq 6qq 6qq 6qq 6qq 6qq 6qq 6rs 6tt 71b 745 746 74b 74b 74c 7dq 7gu 7k1 7k5 7q8 7td 7tf 80d 8pn
Believe it or not, this version can actually beat AI3. I thought it would be fun to post this for trial comments, even though there's not much time for that phase left.