All of the elemental relics each have one exclusive Gold fighter (though they sometimes appear in Holiday relics too):
- Idol Threat Filia- Water
- Pyrotechnique Valentine - Fire
- Star Crossed Parasoul - Wind
- Grim Fan Painwheel - Light
- Megasonic Big Band - Dark
There are also a couple of odd ones exclusive to other places too.
- Oh Mai Valentine - Daily Relic
- Inner Pieces Eliza - Gold Gifts
Also, sometimes when a Holiday relic is released, it will sometimes include a new fighter who is exclusive to that relic for a while, but then that fighter is added to the regular relics in the next major update. Currently, Mean One Peacock and Evergreen Evil Double from the Christmas relic haven't been added to regular relics yet, but will be in the 4.2 update.