zoog
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The ballista is still alive and deals about 5 damage to the lower unit, leaving 1 lich on top.
Added after 33 minutes
I managed to do it with 7 pixies + 1 elemental, it was close, but the ballista survived. 6+2 works reliably.
Added after 33 minutes
I managed to do it with 7 pixies + 1 elemental, it was close, but the ballista survived. 6+2 works reliably.
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