Chixia Community Build
Dark: Chixia as servant buffer
AppMedia's dark team for the endless ring and defense modes runs Cosette main (dark damage-taken debuffer), Mistique as the lantern-ghost damage core and Chixia buffing servants with the Crimson Dragon Chant and Horn Call picks. Priority order: Mistique, then Chixia, then Cosette. Former fire-main duty (pre-Fuyuka) lives on in budget CN guides.
Main Cosette
No potential picks listed for this slot in the source guide.
Support Mistique
No potential picks listed for this slot in the source guide.
Support Chixia
Core 
Crimson Dragon: Chant
Crimson Dragon: Chant Lv. 6 
Ink Sigil: Horn Call
Ink Sigil: Horn Call Import Code
Import Code
AAAAjgAAAIcAAACNAAAAAAAAAAAAAEwAAAAA Paste this into the game's potential import box to load the whole team build at once. Normal potentials are encoded at Lv. 6.