Cyber Angel Idaten (DLCS-EN109) - Dragons of Legend: The Complete Series 1st Edition

You can Ritual Summon this card with "Machine Angel Ritual". If this card is Ritual Summoned: You can add 1 Ritual Spell from your Deck or GY to your hand. If this card is Tributed: You can make all Ritual Monsters you control gain 1000 ATK/DEF.