I've been running numbers and it seems that 4-6, 6/2 evos yield decent stats. generally within 150-200 difference in Atk stats and 150-200 in Def Stats. Also ran synopsis under 8-6 and found that it only differs from a 6-2 by about 10-15 points. Also Ran 8-14 vs 6-6 and only different by about 100 in atk and about 50def. I know there are tons of % tables but I thought I'd log actual numbers (all based on Agni, but confirmed with Reshef, Yinlong etc). Looks like 6-6 decks are not only good in stats, but much more cost effective.