Covering the bases (7)
"Once we start the fight, focus on paralyzing the enemies with an area of effect spells," Luke said. "I won't be able to stop hundreds of them from dashing toward you guys, so that is the only way to prevent them from getting too close. You two, focus on just stopping those that get too close, don't try to headshot them. You might end up missing and wasting a lot of mana."
After saying the last part to Amanda and Celia, Luke ended up lining up in front of them the numerous mana potions that he found in the dark elves' world thanks to his skeletons. While he could use those himself, it was an investment. Luke was the only one who could sell loot, so he was bound to gain money from the items dropped on the next battle.