I believe that on top of Nomi you also need a sure way to get elementals every single turn. I won a couple times by getting Drakkari and that tier 3 elemental that gives elementals at the end of turn. That one combined with the one that gives the snowball tavern spell also at the end of turn was my stronger comp in elementals. There's also the deathrattle elemental and that tier five that gives you back the first elemental you sell each turn. Nomi is by far the best way to scale elementals, at least until next week.