Card Tips:Groza, Tyrant of Thunder
- "Fabled Raven" can discard either "Sillva, Warlord of Dark World" or "Goldd, Wu-Lord of Dark World" (both being Level 5) to increase its Level to 3, while the discarded monster can be Special Summoned by its own effect. Both can then be used to Synchro Summon this card.
- "Ariane the Labrynth Servant" can send a Normal Trap from the hand to the GY in order to Special Summon a Level 4 Fiend Tuner monster from the Deck, such as "Obsessive Uvualoop".
- This card can be used to trigger the effect of "Dark World" monsters, such as "Grapha, Dragon Lord of Dark World", during the opponent's turn.
- While this card's second effect is most often triggered by its first effect, it can also be triggered by Fiend monsters such as "Skull Meister" and "Dark Spirit of Malice", which can send themselves from the hand to the GY during the opponent's turn.
- "Muckraker From the Underworld" and "Call of the Archfiend" can Special Summon this card back from the GY.
- Since both of them discard cards, they can also be used to trigger this card's second effect while reviving other Fiend monsters.
