Platinum Sword

Platinum Sword(プラチナムンード, Purachinamundo) is the spirit of a pelican and the Guardian Ghost of Radim.

About
Platinum Sword was apparently a normal pelican until somewhere along the line, it evolved into a Serei Class spirit.

O.S. Platinum Sword
O.S. "Mike in Platinum Sword"(O.S. マイク・イン・プラチナムンード)

Description: Platinum Sword becomes a dense blade of furyoku. This oversoul concentrates all of Radim's furyoku into the microphone to produce the blade, this carries numerous risks but Radim's martial arts skills compensate for these. Due to this nature, any attacks made are extremely powerful, being able to cut through both Yoh's White Swan O.S. and Lyserg's Mastema Dolkeem easily. It also increases Radim's speed, making him faster than Chocolove McDonell. These powers are increased using the Patch Song.
 * Shaman: Radim
 * O.S. Type: Weapon
 * Spirit Ally: Platinum Sword
 * Medium Used: Radim's Microphone

Unnamed O.S.
Unnamed O.S.

Description: Radim creates a gigantic pelican to swallow the opponent. The full abillity of this oversoul is unknown as it was quickly defeated by Yoh.
 * Shaman: Radim
 * O.S. Type: Spirit
 * Spirit Ally: Platinum Sword
 * Medium Used: Radim's Microphone

Anime/Manga Difference
Because Radim never makes an official appearance in the anime, neither does Platinum Sword.

Trivia
Likely due to the Patch Tribe Native American theme, Platinum Sword is likely an American White Pelican.