Well I don't know HOW you did it but I am certainly grateful. Thank you!
"Trick was to take out biggest group of enemies and lightning towers with the nuke."
Please pardon my ignorance but could you explain (in a simplified way) taking out enemies "with the nuke"?
How specifically did you do this?
I know I pressed all the various spell keys (1-6) at intervals but none of them were ever even remotely successful.
How were you able to keep the dragon alive whilst launching your offence at the same time?
Whilst I controlled Dragon his lifespan was never more than aaprox.40 seconds