Oruga is a Water monster but there are a lot of Fire mobs. It will be difficult for a full Wood team to deal with the mobs and they will be taking in more damage. Oruga will do an ATK Down on Turn 1. It will wear off a team member after their turn. It will waste 4 turns so you want to bring Status Recovery monsters or ones with Barrier. Oruga has Deity Slayer. She also does a lot of damage so avoid Deity monsters.