Ethereal Credit

TCG undefined

Ethereal Credits are token used to buy various items from an Ethereal Soul-Trader.

Source
To obtain a credit, you must first summon your Ethereal Soul-Trader which is done by using the. The beacon is a reward from Landro Longshot in Booty Bay, as part of the Trading Card game.

Once the Soul-Trader is summoned, you must kill players or NPCs which are no less than nine-levels below you. For example, if you're a Level 70 player, you will not obtain a credit for killing a Level 60 player or NPC.