Sinful Seraphim

Sinful Seraphs are a series of cards that first appear in the "Duel Academia Re-Visited GX" roleplay on janime and are used by Teresa Unno. If you have 1 or more "Sinful Seraph" cards on the field, you must pay 500 Life Points on your Standby Phase. This effect cannot be negated, except through the effect of "Hell's Palace - Elysium", a field spell that puts your entire Deck in your Graveyard and causes you to draw from the grave instead of from your deck.

Support cards include "Holy Edict" and "Sacred Edict", which prevent the opponent from playing card effects that require life points and discards, respectively, as payment.

While the majority of the cards are created by Danny Lilithborne, there are some that were created by DarkblazeHunter.