4x4 card binder Vault X - 4-Pocket Strap more portable format Side Loading 4x4 Pokemon Card

Drytron Alpha Thuban - Summons itself and adds a Ritual Monster from the Deck Drytron Zeta Aldhibah - Summons itself and adds a Ritual Spell from the Deck Drytron Gamma Eltanin - Summons itself and another Drytron from the GY Drytron Mu Beta Fafnir - An XYZ Monster that allows the Materials to be used for Ritual Summons

Thats because they only improve the value of one of your creatures rather than provide a threat in and of themselves

The creepiest villain of the original Yu-Gi-Oh

Being a ninja makes it useful in more than just illusion decks, and we like cards that can be used in more than one place

Nothing of that sort happens on the ST