Get yourself ready for we have our new overlord.
Nekroz of Sophia
You can Ritual Summon this card with any “Nekroz” Ritual Spell Card. Must be Ritual Summoned from your hand by using 3 monsters with different Types you control, and cannot be Special Summoned by other ways. (1) During either player’s Main Phase 1, you can discard this card and 1 “Nekroz” Spell Card in your hand. During this Phase, your opponent cannot Special Summon from his/her Extra Deck. (2) When this card is Ritual Summoned, you can banish all other cards on the field and in both Graveyards. During the turn this effect is activated, you cannot Normal or Special Summon other monsters.
Source: The Organization