World Tree Tower

Published July 29 2021

Last Updated July 21 2023

## Guide

The World Tree Tower (also known as the Memory of Yggdrasil) is a game mode that is connected to the Ragnarok storyline. Upon completing Chapter 1 [Chapter 22] of the aforementioned storyline, it can be accessed by going to the “Battle” screen and finding the mode in the bottom right of the selection, second from the bottom.

The Memory of Yggdrasil is divided into three segments in this order:

* Memory of the Earth
* Memory of the Heavens
* Memory of the Nether

Each stage is subsequently more difficult than the last. **For a guide on the Memory of the Nether, commonly noted as the hardest of them all, click here**.

To enter each stage, it requires one Rune which is a ticket used as the stamina for this mode. These can not be replenished through any items and can only be gained by waiting for them to replenish over time. You are allowed to hold up to 10 at any time. You gain one Rune every 12 hours.

Each Memory drops its own version of “Memory Fragments”, which are used in the exchange shop. For example, all of the Memory of the Heavens stages will drop Heavens Memory Fragments, which can be used in the “Heavens” tab within the exchange shop.

All of the items available within each shop refresh once per week at the start of each week (Monday, 12:00 AM PDT). Therefore, it is recommended that you prioritize a specific memory per week so you can get the items you want. Items within the exchange shop have a set exchange limit.

Since each stage takes the same amount of Runes, it is recommended to always grind the Fifth Memory of each stage for maximum rewards with skip tickets.

### Exchange Shop Priority (In Order)

* **Earth**
	1. Twilight Temple Artifact Card
	2. Wanderer Thonar Artifact Card

* **Heavens**
	1. Source of the Roots’ Corruption (Holy Relic Crafting Material - Nidhoggr)
	2. Twilight Source (Holy Relic Crafting Material - Skoll & Hati)
	3. Eikthyrnir’s Refuge Artifact Card
	4. Cruel Winter Artifact Card

* **Nether**
	1. Legendary Seal (LR Evolution Material)
	2. Dark Red Crystal (Holy Relic Crafting Material - Nidhoggr)
	3. Honor of the Einherjar (Holy Relic Crafting Material - Skoll & Hati)

### Memory Rewards - Fifth Stages

As stated above, the best stage to farm with skip tickets are the final and fifth stages. This is why only the fifth stage rewards are listed. For further reward information, check in-game by clicking on the treasure chest on the stage in question.

#### **Earth**

* Diamond x1 (First time clear reward only)
* Earth Memory Fragments x88 (Guaranteed Stage Reward)
* Gold Box (12% Drop Chance)
	+ SSR Evolution Pendant x1
	+ 5\* Grimoire of Speed x1
	+ 5\* Grimoire of HP x1
	+ 5\* Grimoire of Strength x1
* Silver Box (35% Drop Chance)
	+ SR Evolution Pendant x1
	+ 4\* Grimoire of Speed x1
	+ 4\* Grimoire of HP x1
	+ 4\* Grimoire of Strength x1
* Bronze Box (53% Drop Chance)
	+ R Evolution Pendant x1
	+ 3\* Grimoire of Speed
	+ 3\* Grimoire of HP x1
	+ 3\* Grimoire of Strength x1

#### **Heaven**

* Diamond x1 (First time clear reward only)
* Heavens Memory Fragments x88 (Guaranteed Stage Reward)
* Gold Box (21% Drop Chance)
	+ SSR Treasure Chest x1
	+ 5\* Awakening Stone x3
	+ Enhance Stone x80
* Silver Box (59% Drop Chance)
	+ SR Treasure Chest x1
	+ 4\* Awakening Stone x3
	+ Enhance Stone x60
* Bronze Box (20% Drop Chance)
	+ R Treasure Chest x1
	+ 3\* Awakening Stone x3
	+ Enhance Stone x40

#### **Nether**

* Diamond x1 (First time clear reward only)
* Nether Memory Fragments x88 (Guaranteed Stage Reward)
* Gold Box (22% Drop Chance)
	+ SSR Treasure Chest x1
	+ SR Plate Card x2
	+ 5\* Hero Enhance Potion x1
* Silver Box (58% Drop Chance)
	+ SR Treasure Chest x1
	+ R Plate Card x3
	+ 4\* Hero Enhance Potion x1
* Bronze Box (20% Drop Chance)
	+ R Treasure Chest x1
	+ UC Plate Card x2
	+ 3\* Hero Enhance Potion x1