Tephra Cave is a large, cavernous area that you will be forced to visit at least twice during the main story. The main entrance is located up a hill just outside of Colony 9 and during your first visit, there will be a locked door inside. It isn't until your second mandatory visit, which happens not soon after the first one, that you can explore beyond that locked door.
Note: The items are listed in the exact order as you input them into the Collectopaedia, so it's easy to know which one(s) you are missing.
Clear Almond, Bright Fig, Dark Grape
Lightning Attack II
Insanity Mint, Night Tulip
Poison Defence III
Shin Newt, Cave Rat, Shin Gecko, Happy Rabbit
HP Up II
Brown Butterfly, Gold Caterpillar, Rumble Stonefly
Slow Resist II
Kneecap Rock, Confusion Ivy, Clarity Moss
Attack Plus II
Leaf Mystery, Steel Silk
Attack Stability II
The reward for completing this area's Collectopaedia is a pair of Warrior Cuisses (Heavy Armor).
Guide Author Ben Chard, Jarrod Garripoli, Seren Morgan-Roberts
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The Bionis and the Mechonis, two great titans, their remains the scene of an epic adventure is about to begin. The guide for Xenoblade Chronicles: Definitive Edition features all there is to see and do including a walkthrough featuring coverage of all Chapters, Quests, Affinity Charts, and much more. Including an in-depth walkthrough of Future Connected, the new story and all of the new changes that Definitive Edition brings.
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