Ether Def Down

For mechanics in other games, see Ether Defence Down.

Ether Def Down
[Active] (rate)% chance of auto-attack reducing ether defence by (value)%.
Element	Ice
Category	Attack
Equips on	Weapons
Max Combined	25% reduction
Sell Price	400 G (Rank I)

Ether Def Down (Japanese: エーテル耐性減, Ēteru Taiseigen) is a Gem in Xenoblade Chronicles that grants a chance of successful auto-attacks reducing the enemy's Ether Defence, thereby increasing the amount of damage that the enemy will take from ether attacks.

Gem stats

	Activation Rate	Ether Def Reduction
Rank I	10%	2-4%
Rank II	12%	6-8%
Rank III	16%	10-12%
Rank IV	20%	14-16%
Rank V	25%	18-20%
Rank VI	30%	22-25%

Gem sources

Rank I	None
Rank II	None
Rank III	Trade Zarkort (Fallen Arm, 1*) Mixik (Fallen Arm, 1*)
Rank IV	Collectopaedia Agniratha - Nature category complete Quest Therapy Trade Zarkort (Fallen Arm, 4*) Mixik (Fallen Arm, 4*)
Rank V	None
Rank VI	None

Crystal and cylinder sources

Rank I Rank I	None
Rank II Rank II	None
Rank III Rank III	Mining Valak Mountain Lower Level (map) - N of Great Glacier on a ledge
Rank IV Rank IV	Enemies Prosperous Zepar Kukukoro Flamii
Rank V Rank V	Enemies Victorious Gross Furious Jozan Deadly Medorlo Gracile Nebula Frost Nebula Wool Selua Rhoen Quadwing Licorne Telethia

Unique armour and weapons

Unique Armour and Weapons with Ether Def Down gems permanently attached to them.

Rank I	None
Rank II	None
Rank III	None
Rank IV	None
Rank V	None
Rank VI	None