Starlight Rare
CYAC-EN042 Despian Luluwalilith

Secret Rare
CYAC-EN047 Firewall Dragon Singularity

Ultra Rare
CYAC-EN0oo Numbers Eveil
CYAC-EN039 Superheavy Samurai Brave Masurawo
CYAC-EN045 Tellarknight Constellar Caduceus

Super Rare
CYAC-EN015 Dreaming Nemleria
CYAC-EN020 Tellarknight Altairan
CYAC-EN049 GranSolfachord Coolia
CYAC-EN051 Cynet Rollback
CYAC-EN064 Constellar Tellarknights

You can check out the entire rarity spoiler thus far here!

Source 1

Source 2