Ultima Summon

A Ultima Summon (アルティマ召喚, Arutima Shoukan) is the method of ing an Ultima Card. To Ultima Summon an Ultima Card, you must have an appropriate number of Tags (gained through effects) in a Monster Zone and the appropriate Ultima Material Monster (listed in the Ultima Card's Card Text) in the same Monster Zone as the Tags you are intending to use for the Summon. The number of Tags in that Monster Zone is then divided by the Level/Rank of the monster in that same Zone. The value of this division (rounded down) must be equal to the Hierarchy of the Ultima Card you are attempting to Summon. The Ultima Material Monster is then banished (face-up), and the Ultima Card is Summoned (from the Extra Deck) in the same Monster Zone that the Ultima Material Monster was previously in. If an Ultima Card is removed from the field, half of the Tags that were used for its Summon are removed from the field.

In Yu-Gi-Oh! Duality of Demon, the process of Ultima Summoning is referred to as Ascending a monster, as Ultima Cards are believed to be "cards above monsters who have ascended to a higher plane". When an Ultima Summon is performed, the monster being used rises towards the sky while the Tags, represented by golden spheres, float around it in a large circle. The Tags then begin to spin around the monster until it is enveloped in a bright light. The monster and the Tags then disappear while the Ultima Card appears in their place.

Ultima Summoning is considered a rare Summon Method in "Duality of Demon" due to its sometimes overwhelming strength, it's level of difficulty, and the time it takes to pull it off.

Rulings

 * As Ultima Cards are not monsters, Ultima Summon cannot be negated through cards such as or.


 * An Ultima Summon CAN however be prevented by cards such as the anime-only, who specifies that Special Summons are not allowed, but doesn't specify what can't be Special Summoned.