The Agent of Miracles – Jupiter (SDLS-EN003)

Once per turn, you can remove from play 1 "The Agent" monster in your Graveyard to select 1 face-up LIGHT Fairy-Type monster you control. The selected monster gains 800 ATK until the End Phase. While "The Sanctuary in the Sky" is face-up on the field, once per turn, you can discard 1 Fairy-Type monster to select 1 of your removed from play LIGHT Fairy-Type monster, and Special Summon it.

Fairy / Effect, Lost Sanctuary Structure Deck