Mechquipped Angineer (NUMH-EN035)

2 Level 3 monsters

Once per turn, during either player's turn: You can detach 1 Xyz Material from this card, then target 1 face-up Attack Position monster you control; change it to face-up Defense Position, and if you do, it cannot be destroyed by battle or by card effects this turn.

Fairy / Xyz / Effect, Number Hunters