Ether Def Down (gem)

Ether Def Down is a gem effect in Xenoblade Chronicles. It grants a percentage chance that the user's auto-attack will inflict on the target for 10 seconds.

Overview
Even with the weakest gems, Ether Def Down will eventually trigger and cause the victim to take increased damage for a short time. This is not quite as good as its brother for long fights, as auto-attacks are physical, but it is instead an opening for using a bunch of ether attacks.