I mean what super robot team would be complete without a robot dog?
RD/VSP1-JP022 超魔犬ロペロ Choumaken Ropero (Super Magical Dog Ropero/Superme Dog Ropero)
Level 3 DARK Machine Effect Monster
[REQUIREMENT] You can activate this by paying 500 LP and returning 2 cards from your hand to the Deck.
[EFFECT] Until the end of your opponent’s next turn, this card cannot be destroyed by battle. Also, you can choose 1 Level 10 Maximum Monster, “Super Electromagnetic Maximum” or “B.B.B. – Beast Brave Brandish” in your GY and add it to the hand.
Also, a short video on how to use it: