Card Tips:Celestial Observatory


 * If you control no cards (or the only card you control is the target of this card), you can use this card to return a Level 6 monster from your hand or Field to the Deck, then summon it during your opponent's Battle Phase with the effect of "Goddess of Sweet Revenge". This has the added benefit of destroying as many cards your opponent controls as possible, completely turning the tide against an unprepared opponent.
 * Return a "Destiny HERO - Malicious" from your hand to the Deck so it can be summoned by the effect of another copy of itself in your GY.
 * This card is very useful in a "Hieratic" deck. You can return a Level 6 monster summoned by the monsters' mandatory effects to the Deck for draw power. You can also return "Hieratic Seal of the Dragon King" from your hand to the Deck, letting it be a target for "Hieratic Seal From the Ashes". "Hieratic Dragon King of Atum" can also summon back what you shuffle into the Deck, making this card's cost not just negligible but beneficial.
 * You can return one of the Level 6 "Monarch" monsters from your hand to the Deck in case you have a dead hand.