Xenoblade Chronicles Definitive Edition

Chapter 3: Tephra Cave (Revisited) Walkthrough

This is a walkthrough for the Tephra Cave (Revisited) section of Xenoblade Chronicles Definitive Edition for Nintendo Switch. For a map of Tephra Cave Landmarks and Locations, as well as boss strategy and other tips and tricks, read on!

Chapter 3: Tephra Cave (Revisited) Walkthrough

Tephra Cave

Objectives
1 Head to Tephra Cave
2 Go through the newly unlocked door in the Mag Mell RuinsXenoblade Chronicles Chapter 3 Path.jpg
3 Defeat the Arachno ambush
4 Proceed further into the Arachno nest
5 Rescue Reyn
6 Defeat Queen Arachno
7 Proceed to the end of the tunnel

Side Quests

The following side quests are available from this chapter:

Colony 9 Side Quests

Quest Location Giver Rewards
Mementos of a Lost Son Ether Light Cheryl +200 Reputation
4500 G
1500 EXP
Bomber Lancer
Flattened Flowers Tranquil Square Françoise +100 Reputation
750 G
100 EXP
Soil Gauntlets
Romantic Notions of a Girl Fortress Entrance Monica +200 Reputation
1200 G
300 EXP
Soil Boots
Romantic Notions of a Boy Fortress Entrance Andreas +200 Reputation
1200 G
300 EXP
Soil Gear
An Impoverished Critic Ether Light Leopold +200 Reputation
Financial Planning Ether Light King Squeeze 2500 G
500 EXP
Ranger Shoes OR Quark Boots
Overworked and Underpaid Ether Light Giorgio +100 Reputation
3000 G
300 EXP
HP Up II OR Ether Def Up II
Paola and Narine Tranquil Square Narine +250 Reputation
200 G
20000 EXP
Daze Plus IV
The Plan - Preparation Ether Light Sesame +100 Reputation
1000 G
150 EXP
Critical Up II
The Plan - The Night Before Ether Light Sesame +150 Reputation
1500 G
200 EXP
Strength Up III
The Plan - Execution Ether Light Sesame +250 Reputation
5000 G
1200 EXP
Attack Stability II
A Young Captain's Suffering Fortress Entrance Emmy Leater +150 Reputation
1100 G
180 EXP
Ether Def Up III
A Young Captain's Rise Fortress Entrance Emmy Leater +200 Reputation
1800 G
250 EXP
Flame Gear
The Lost Pendant Cylinder Hangar Defence Force Soldier +50 Reputation
950 G
100 EXP
Quark Gear

Quests in Red Text indicate Timed Quests. As these quests will expire after progressing to a certain part of the game, be sure to complete them while they are still available!

Tephra Cave Side Quests

Quest Location Giver Rewards
Missing in Action Mag Mell Ruins Defence Force Soldier +100 Reputation
800 G
50 EXP
Leather Top, Leather Bottoms
Arachno Silk Fundraising Mag Mell Ruins Defence Force Soldier +100 Reputation
500 G
100 EXP
Ranger Gloves
A Thank You Mag Mell Ruins Defence Force Soldier +150 Reputation
1500 G
100 EXP
Topple Resist II
Clearing Obstructions Mag Mell Ruins Defence Force Soldier +200 Reputation
2500 G
200 EXP
Bleed Defence III
Collection Quest 1 Mag Mell Ruins Defence Force Soldier +50 Reputation
1000 G
Collection Quest 2 Mag Mell Ruins Defence Force Soldier +50 Reputation
1500 G
Material Quest 1 Mag Mell Ruins Defence Force Soldier +50 Reputation
1200 G
Material Quest 2 Mag Mell Ruins Defence Force Soldier +50 Reputation
1500 G

Quests in Red Text indicate Timed Quests. As these quests will expire after progressing to a certain part of the game, be sure to complete them while they are still available!

Maps and Collectopaedia

Tephra Cave Map

List of Maps
Ground Floor First Floor
Second Floor Third Floor

Note: Some landmarks and locations can only be reached after completing Chapter 15: Mechonis Core.

Tephra Cave (Revisited) Landmarks and Locations

Landmarks

A Tephra Path
B Mag Mell Ruins
C Rear Entrance
D Spring of Grief
E Vilia Lake
F Heavenly Window
G Bafalgar Tomb
H Leg Pass

Note: Landmarks F and G can only be reached after completing Chapter 15: Mechonis Core.

Locations

1 Caterpile Nest
2 Warehouse 2
3 Escape Pod Bay
4 Tephra Cavern
5 Hidden Warehouse
6 Forgotten Cave
7 Emergency Warehouse
8 Soothsayer's Crypt
9 Prayer Room
10 Bone Corridor
11 Arachno Queen's Nest
12 Kneecap Hill
13 Trader's Stopover
14 Arachno Feeding Lair
15 Path of Absolution

Note: Locations 6, 7, 8, 9, 10,13, 14, and 15 can only be reached after completing Chapter 15: Mechonis Core.

Heart-to-Hearts

Title Location Char. 1 Char. 2 Affinity
The Legend of the Spider Bone Corridor Shulk Reyn Purple
A Scene Revisited Kneecap Hill Reyn Fiora Pink
Glowing in the Night Spring of Grief Dunban Riki Purple

Tephra Cave Collectopaedia

Fruit Clear Almond Bright Fig Dark Grape - -
Flower Insanity Mint Night Tulip - - -
Animal Shin Newt Cave Rat Shin Gecko Happy Rabbit -
Bug Brown Butterfly Gold Caterpillar Rumble Stonefly - -
Nature Kneecap Rock Confusion Ivy Clarity Moss - -
Strange Leaf Mystery Steel Silk - - -

Collection Rewards

Fruit Lightning Attack II
Flowers Poison Defence III
Animals HP Up II
Bugs Slow Resist II
Nature Attack Plus II
Strange Attack Stability II
100% Completion Warrior Cuisses

Tips and Strategies

Use Future Vision To Save Your Characters From Strong Attacks

Once you begin battling the Queen Arachno, you'll gain the ability to glimpse into the future to see what attacks enemies might do. Use this knowledge to cast protective arts on your characters beforehand. If the enemy art is a Talent Art (shown in White Text), the damage can be blocked by casting Monado Shield.

Keep A Party Gauge Bar Handy To Warn Your Party Members

Additionally, Shulk can warn his allies of what is going to happen, and you can choose to have them perform an art at the cost of one bar of the Party Gauge. If they have their own defense skill, keep a bar handy to make sure they aren't helpless when Shulk's Talent Gauge is not full. For Reyn, Last Stand will prevent him from dying.

Use Area of Effect Arts Against Crowds

Xenoblade Chronicles Arachno Ambush.jpg
When ambushed by Arachnos and fighting the Queen Arachno, there will be a swarm of enemies surrounding you, and using area of effect attacks arts like Stream Edge and War Swing are good ways to soften all of them up at once.

Super Fast Leveling

Xenoblade Chronicles Tephra Glitch Wall Mark.jpg

There is an exploit that can be done after beating the boss of this area. Doing so can allow you to level into the 50's in a matter of minutes. If you are interested in learning about this glitch to level up your team super fast, see the guide below!

Tephra Cave Glitch: Early Game Leveling

Boss Strategy Guide

Queen Arachno

Xenoblade Chronicles Queen Arachno.jpg

Use the Tips Above

This battle is a good chance to put in practice the tips above!

Get Rid of the Smaller Spiders

While you may not notice it they deal quite a lot of damage when stacked up. Take care of them before focusing fire on the queen.

Keep Moving

The Queen Arachno has an ability that keeps you in place, and allows her swarm to overwhelm you. Keep mobile so the crowd does not get you!

Story Walkthrough Related Links

Xenoblade Chronicles Story Walkthrough

Prologue The Battle of Sword Valley
Chapter 1 Colony 9 and Tephra Cave
Chapter 2 Colony 9 (Mechon Invasion)
Chapter 3 Tephra Cave (Revisited)
Chapter 4 Bionis' Leg
Chapter 5 Colony 6 and Ether Mine
Chapter 6 Satori Marsh and Bionis' Interior (1st Time)
Chapter 7 Makna Forest and Frontier Village
Chapter 8 Eryth Sea, Alcamoth, and High Entia Tomb
Chapter 9 Prison Island (1st Time)
Chapter 10 Valak Mountain
Chapter 11 Sword Valley and Galahad Fortress
Chapter 12 Fallen Arm
Chapter 13 Mechonis Field
Chapter 14 Central Factory and Agniratha
Chapter 15 Mechonis Core
Chapter 16 Central Factory (Revisited)
Chapter 17 Bionis' Interior and Prison Island (Revisited)
Final Boss Memory Space

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