"Let's use them," Ryan declared.
Since they were at the very least six times more powerful than the regular slimes, Ryan also had to pay six times more coins to summon them. He also imagined that the more they level up, it will be more expensive to summon frozen slimes, but Ryan couldn't believe that such a dungeon won't increase his income of coins after a while. After all, the monsters that the slimes defeat will grant him extra coins.
Regardless, while Ryan was waiting for the dungeon to spawn and his crystal also show itself, he began to train his Red Falcons. It seemed a bit cruel, but he was forced to make those monsters resistant to petrification and curses since they didn't have those skills. His several crossbows helped a lot with that.
"I guess you guys will also need a few spells to train themselves while you guard other domains," Ryan scratched the back of his head.