Although the Mutated Lotus Flower Ant was very strong, its own Essence Energy was limited. It wasn't able to keep using Essence Energy Skills. However, even if it didn't use any Essence Energy Skills, the Mutated Lotus Flower Ant and the Silver-Winged Flying Ant could easily kill a Fairy Monkey.
Fairy Monkeys often produced dimensional crystals, but they were mostly Speed Crystals. Occasionally, it would drop some Essence Energy Crystals, allowing Zhou Wen to replenish the Mutated Lotus Flower Ant's Essence Energy.
Now, Zhou Wen believed that the Essence Energy Crystals were rather useful. He only had two Companion Beasts at the moment, but he already needed plenty of Essence Energy Crystals to replenish his Essence Energy. In the future, with more Companion Beasts, the Essence Energy Crystals would be even more useful.