Entropy/fire really worked great for me! But if i had used a 30 card deck, i would have decked out! Here is my variant:
4vc 4vc 4vc 4vc 4vc 4vc 4vc 4vc 4vc 4vc 4vd 4vd 4vd 4vd 4vn 4vn 4vo 50u 5f0 5f0 5f0 5f0 5f0 5f3 5f3 5f3 5f3 5f5 5f5 5f5 5f5 5f7 6rn 6rn 6u7 6u7
It think the bit higher number of cards works to your advantage. If things run not optimal, you have a bit more time....
Added a single butterfly effect (to get rid of his bonds -> fewer healing for him), an additional fire spirit (as i will butterfly one), a fahrenheit (some quick damage) and 2 SoGs (to try EM)...i could even re-antimatter the last dragon and kill him...