...Why aren't you just going for mitosis devonian dragon or mitosis emerald dragon? I really don't see any benefit for using water dragons.
+1.

dragons give you the SoR spawn advantage, while

dragons give you the advantage of running a mono (and even able to run that with rustlers,

mark, and a bunch of

pillars!)

dragons have no advantage over

dragon in unupped. If you upgrade the

dragons it might be OK due to the relatively higher damage of arctic dragons (13 for 11

).
Still, if you're planning to use SoR, use

dragons...