Once your fighters queue is filled, you may need to swap soldiers. Replace weak soldiers with stronger ones as you progress. Stronger troops require additional mana to be summoned. Have some weaker troops ready to use as easily-summoned fodder. Warriors can change lanes above and below to unoccupied spaces. It is not necessary to spend mana to summon new soldiers if you can just reposition to get the same tactical effect. Magic users can attack soldiers that are adjacent to each other, either horizontally or vertically.
