This card can be used to Ritual Summon any "Cyber Angel" Ritual Monster. You must also Tribute monsters from your hand or field and/or shuffle Fairy or Warrior-Type monsters from your Graveyard into the Deck, whose total Levels exactly equal the Level of the Ritual Monster you Ritual Summon.
These cards help you search for the ritual spells or ritual monsters faster. Cyber Petit Angel and Sonic Bird add Machine Angel Absolute Ritual or Machine Angel Ritual from your deck to your hand. Senju of the Thousand Hands add Machine Angel ritual monsters from your deck to your hand. It’s a good idea to have 1 of each in your starting hand for more flexible plays.