Érébus, le Monarque Souterrain SR01-FR001

You can Tribute Summon this card by Tributing 1 Tribute Summoned monster. If this card is Tribute Summoned, you can send 2 different "Monarch" Spell/Trap Cards from your hand and/or Deck to the GY, and if you do, shuffle 1 card from your hand, GY, or your opponent's field into the Deck. Once per turn, during each player's Main Phase, if this card is in your GY, you can discard 1 "Monarch" Spell/Trap Card, then target 1 monster in your GY with 2400 or more ATK and 1000 or more DEF, and add it to your hand.