Duration: Long-term

Entrance: "Trials" button

Challenge Chance: once a day (free), or enter with Rune Challenge Letter

Rewards: Yellow Rune Essences

Rules:

1. After you get to Rune Mountain, you need to defeat 4 waves of Bushfire Beasts first.

2. Lich Kings will show up when you defeat all Bushfire Beasts. Rune Essences will be your reward for defeating Lich Kings.