Card Name: Thunder King Rai-Oh
Attribute: Light
Level: **** (4)
Card Type: Thunder/Effect - Continuous/Quick (Trigger-Like)
Attack: 1900 Defense: 800
Condition: None
Card Effect Cost: (Effect 2) Tribute itself
Does This Card Target: No
Text: Neither player can add cards from their Deck to their hand except by drawing them. During either player's turn, when your opponent would Special Summon a monster: You can send this face-up card to the Graveyard; negate the Special Summon and destroy it.
Ruling
*Thunder King Rai-Oh can only negate inherit special summons(ex. Cyber Dragon) not effects that special summon(ex Monster Reborn).
Link to Inherit and Effect Special Summons: http://quasar-academy.foromotion.net/t2849-inherent-summon-vs-effect-summon#25551
*A Semi-Nomi monster negated and destroyed by Thunder King Rai-Oh cannot be special summoned from the grave by a card effect.
Link to Nomi and Semi-Nomi: http://quasar-academy.foromotion.net/t2845-nomi-vs-semi-nomi
Tip
*Supposing Thunder King Rai-Oh is in the grave; If your opponent activates a card effect that adds a card(s) from the deck to the hand, chain Call of the Haunted as Chain Link 2 to the effect and Special Summon Thunder King Rai-Oh. At Chain Link 1, your opponent will choose the card he/she wants and send it to the grave.
Player 1: Activates Pot of Duality
Player 2 Chains Call of the Haunted and targets Thunder King Rai-Oh
Chain Link 2: Call of the Haunted Special Summons Thunder King Rai-Oh
Chain Link 1: Pot of Duality (Reveals Mystical Space Typhoon, Black Luster Soldier - Envoy of the Beginning, and Dark Hole)
Player 1: Chooses Dark Hole
(Dark Hole is sent to the graveyard at resolution of chain, the other 2 cards are returned to the deck.)