BLZD-JP030 デス・レジーナ・デーモン Death Regina Daemon [Doom Regina Archfiend]
Level 7 LIGHT Fiend Ritual Pendulum Effect Monster
ATK 2100
DEF 2900
Scale: 9
Pendulum Effect:
You can only use the Pendulum Effect of this card’s name once per turn.
(1) You can target 1 “Archfiend” Spell/Trap in your GY or banishment; destroy this card, and if you do, add that card to your hand.
Monster Effect:
You can Ritual Summon this card with “Throne of Archfiends”. Must be Ritual Summoned. You can only use the (1) Monster Effect of this card’s name once per turn.
(1) If this card is Ritual Summoned: You can destroy all Spells and Traps your opponent controls, then, if this card is in the Extra Monster Zone, you can banish all Spells and Traps in your opponent’s GY.
(2) Unaffected by other monsters’ effects while in the Extra Monster Zone.

BLZD-JP067 デーモンの簒奪 Daemon no Sandatsu [Archfiend Usurpation]
Quick-Play Spell Card
You can only activate 1 card with this card’s name per turn.
(1) Activate 1 of these effects;
● Set 1 “Archfiend” Trap from your Deck or GY. It can be activated this turn.
● Ritual Summon 1 “Archfiend” Ritual Monster from your hand or face-up Extra Deck, by Tributing monsters from your hand or field whose total Levels equal or exceed its Level.

Note: Thanks to Ness for the Translation.

Source: X (Twitter)

Also, Konami very heavily suggests you use “End of the World Ruler” with these cards.