<!-- https://mebulalegends.bitmeup.com/wiki/en/guide/resonance-chamber/ -->
# Resonance Chamber

The **Resonance Chamber** is your passive training ground: place Mebulis inside and they gather **experience** all by themselves over time, no fighting required. Mebulis that are already at max level keep working in the **Afterglow** and earn you XP flasks, Mebuli Dust or transcendence crystals.

Unlocked from **Chapter 3**.

## How it works

1. Open the **Resonance Chamber** from the menu.
2. Pick a Mebuli in a free slot and click **Train**.
3. The Mebuli now gathers experience passively, even while you're offline.
4. Click **Collect** to credit the accumulated experience and free the slot again.

There are **3 training slots** you can fill at the same time, and they aren't equally strong:

- **Resonance Core** (×1, centre): the powerful slot at **2000 XP per hour**.
- **Normal slots** (×2): **500 XP per hour** each.

::: tip Mebula Plus lifts every slot
While a [Mebula Plus pass](https://mebulalegends.bitmeup.com/wiki/en/guide/shop/) is running, **all three slots** deliver the core rate of 2000 XP per hour. If the pass expires mid-session, the time is settled proportionally.
:::

## XP rate

- The XP rate depends on the slot, so put your most important Mebuli in the Resonance Core.
- The chamber accumulates for **up to 24 hours**, after that the slot is "full" and nothing more is added. You can extend that with the prestige node **Resonance Amplifier** (+6 hours) and the [skill](https://mebulalegends.bitmeup.com/wiki/en/guide/skills/) **Resonance Buffer** (+2 hours per level, up to +10 hours). Fully built, that is 40 hours.
- The skill **Resonance Yield** adds more XP: +8 % chamber XP per level, up to +40 %. It also works while Mebula Plus is running.
- From **VIP level 3, 6 and 8** you get +10 %, +20 % and +50 % chamber XP. The bonuses add up (VIP 8: +80 %) and apply to every slot, Mebula Plus included.
- Once a slot is full, the navigation shows a small counter.

## Afterglow: Mebulis at max level

Below max level a Mebuli gathers XP as usual. Once it reaches its final level, its slot switches to **Afterglow**: instead of XP it feeds one of four **collectors**. Which one depends on its rarity, for transcended Mebulis the rarity reached.

| Rarity | Collector | Yield |
|---|---|---|
| Common, Uncommon | Flask Collector (small) | 1 small XP flask (800 XP) per 8 h of Mebuli time |
| Rare | Flask Collector (medium) | 1 medium XP flask (4,000 XP) per 8 h of Mebuli time |
| Epic | Dust Collector | 10 Mebuli Dust per hour of Mebuli time |
| Legendary, Mythic | Crystal Collector | 1 [transcendence crystal](https://mebulalegends.bitmeup.com/wiki/en/guide/transcendence/) per 24 h of Mebuli time |

- The **Resonance Core** counts ×1.5, and **mythic** Mebulis count ×1.5 as well. Together that makes ×2.25.
- Collectors keep their progress. If you swap Mebulis, take them out or leave the chamber empty, not a single hour is lost.
- Once a mark is reached, pick up the yield with **Gather**. Any surplus keeps counting.
- The storage limit of your slot applies to Afterglow too. Take a full max-level Mebuli out with **Take back** and place it again, then it keeps counting.
- If a Mebuli reaches max level in the middle of training, only the part beyond max level counts as Afterglow.
- Afterglow counts time, not XP. Mebula Plus, VIP and Resonance Yield do not speed it up.

## Important: battle-team lock

A Mebuli currently training in the chamber **cannot** also be in one of your battle teams. If you send one into training, the game takes it out of **all** team lineups and remembers its **position and equipment** for each team. When you collect it, it returns to every one of those teams, as long as its old spot there is still free.

The lock does **not** apply to the [arena](https://mebulalegends.bitmeup.com/wiki/en/guide/arena/): your arena team keeps fighting even while one of its Mebulis is training.

Still, it is best to train Mebulis from your "bench" that you aren't fighting with right now.

## Tip

Drop your low-level collection Mebulis into the chamber in the evening and collect them the next morning. Max-level Mebulis belong in the Afterglow instead, ideally the legendary ones in the Resonance Core.
