Ultra Fusion Cards

The Ultra Fusion Cards (ウルトラフュージョンカード) are a series of cards that allow Ultraman Orb to change forms based on the two cards he uses in his Orb Ring. When not in use, he stores them in his Ultra Fusion Card Holder.

Dark counterparts of these cards existed in the form of Kaiju Cards which are used by Jugglus to reawaken slumbering King Demon Beasts.

Ultraman Orb
The Ultra Fusion cards were originally the powers of the past Ultra Warriors, who sealed the King Demon Beasts into slumber.

In the present day, Jugglus tried to awaken them by using the Kaiju Cards as counteracts to the Ultra Fusion Cards by neutralizing their sealing power, allowing the King Demon Beasts to rise once more. After Ultraman Orb defeated them, Gai can harvest their crystals to obtain their cards, placing them under his use.

Functions
The original purpose of the Ultra Fusion Cards were meant to seal King Demon Beasts in their slumbered states. This function can be neutralized through the use of Kaiju Cards, which creates sunspot-like essence that use to block the sealing power of the Ultra Fusion Cards. Once the card is fully blocked, the King Demon Beasts will arise once more and rendering their respective Ultra Fusion Cards useless before Ultraman Orb defeats them.

After obtaining them from defeated King Demon Beasts, Ultraman Orb can change his appearance and abilities based on the two Ultras that are scanned with the Orb Ring.

Even outside the Orb Ring, Gai Kurenai (Ultraman Orb) can channel the respective Ultra Warriors' powers. This is shown when he used Ultraman's power to block an incoming attack from Alien Zetton Maddock's rifle.

Attributes
The Ultra Fusion Cards are abbreviated by their own attributes, which symbolize their specialties and association to different elements.

Known Existing Cards

 * Ultraman
 * Ultraman Tiga
 * Ultraman Taro
 * Ultraman Mebius
 * Ultraman Jack
 * Ultraman Zero
 * Ultraman X
 * Ultraman Belial
 * Ultraman Ginga

Trivia

 * The Ultra Fusion Cards follow the trend of Cyber Cards as the main key collectibles in this series. The advent of the use of cards has also meant that the series is moving away from the use of Spark Dolls as merchandise.
 * The only difference between the series and toy variations is that the series version has the corresponding Ultraman's name written in their kind's language while the product version has it written in Katakana. This difference is shared with the Rider Cards of Kamen Rider Decade and Gosei Cards of Tensou Sentai Goseiger, both of which are Tokusatsu series from Tsuburaya's (and to a lesser extent, Shochiku's) rival company Toei.
 * Aside from the cards' function as combination power-up for Orb, in the Data Carddass arcade game Ultraman Fusion Fight!, the player can also create past Ultraman combinations through the card themselves.
 * One of the peculiar combination is Ultraman Victory and Ultraman Hikari cards into Ultraman Victory Knight. Although this was never a combination, but in Ultra Fight Victory, Hikari is mostly responsible for the transformation as he created the Knight Timbre (which is simultaneously Hikari's Spark Doll in its dormant state), thus making him indirectly combined with Victory in a similar manner to how Ultraman Gaia achieved his Version 2.
 * Ultraman Mebius and Ultraman Hikari fuse into Ultraman Mebius Brave instead of Phoenix Brave.
 * When Ginga, Victory and X's cards are scanned, it will create a Trinity Fusion. It is currently unknown what this is, but it may be to signify that they are the latest Ultra Trio.
 * Scanning Victory's card with certain kaiju causes the Orb Ring to emit a noise for Victory's Ultra Lans forms.