Michael, the Arch-Lightsworn

Level 7 LIGHT/Dragon Synchro Monster
2600 ATK / 2000 DEF

1 Tuner + 1 or more non-Tuner LIGHT monsters
Once per turn: You can pay 1000 LP, then target 1 card on the field; banish that target. When this card is destroyed: You can target any number of other "Lightsworn" monsters in your Graveyard; shuffle them into the Deck, and if you do, you gain 300 LP for each returned card. Once per turn, during your End Phase: Send the top 3 cards of your Deck to the Graveyard.

Rulings – Yugipedia

Printings:

Realm of Light Structure Deck: SDLI-EN036 (Ultra Rare) - 2014-06-27
OTS Tournament Pack 1: OP01-EN020 (Common) - 2016-03-18

Prices:

Cardmarket: 0.55 €
TCGplayer: $ 1.20