What do I upgrade next?

I'm a week or two in to th8 now and I don't know what to upgrade now that I have a free builder. Do I upgrade the new dark drill to lvl 3 like my other one, dark barracks to level 3 for valkyries or do I take this elixir and upgrade archers to lvl 5 first?

Archers to 5

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Originally Posted by FredieJ

I'm a week or two in to th8 now and I don't know what to upgrade now that I have a free builder. Do I upgrade the new dark drill to lvl 3 like my other one, dark barracks to level 3 for valkyries or do I take this elixir and upgrade archers to lvl 5 first?

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Builders: All of the new stuffs, and then splash defenses.
Lab: Your farming army -- Archer.