Ether Down (gem)

Ether Down is a effect in Xenoblade Chronicles and Future Connected. It grants a percentage chance that the user's will inflict  on the target for 10 seconds.

Overview
It is fairly luck-based for Ether Down triggering to coincide with the foe deciding to use an attack in the next ten seconds, so it's not as appealing as the other "stat down on auto-attack" gems unless the foe's moveset is mostly comprised of ether attacks. Still, the party otherwise has no way to inflict the debuff outside of Ether Drain, so it can be worth using on that merit alone.