Master Spirit Tech Force - Pendulum Ruler

[ Pendulum Effect ] 
During your Main Phase: You can return this card to the Extra Deck, then you can add 1 Level 7 Pendulum Monster from your Deck or face-up Extra Deck to your hand. You can only use this effect of "Master Spirit Tech Force - Pendulum Ruler" once per turn.

[ Monster Effect ] 
1 Level 7 or higher Pendulum Monster + 1 Pendulum Monster
Cannot be destroyed by card effects. Your opponent's monsters cannot attack, except Pendulum Monsters without a Level. You can Tribute 1 monster, then target 1 card your opponent controls; destroy it, and if you do, inflict 1600 damage to your opponent. You can use this effect of "Master Spirit Tech Force - Pendulum Ruler" twice per turn. Once per turn: You can place this card in your Pendulum Zone.