"Swordmaster's Soul" (Dark Magician Support)

Swordmaster's Soul/Effect:

This card's name becomes "Buster Blader" while in your hand, Deck, GY, and on the field. If this card is in your hand or GY (Quick Effect): You can target 1 "Dark Magician" you control; Special Summon this card. If this card is Normal or Special Summoned: You can Set 1 "Polymerization" Normal Spell or "Fusion" Spell/Trap from your Deck or GY to your Spell & Trap Zone. You can only use each effect of "Swordman's Soul" once per turn. You cannot Special Summon any monsters from the Extra Deck, except Spellcaster-Type monsters, the turn you activate either of this card's effects.

Level 7/LIGHT/Warrior/2600 ATK/2300 DEF

Trivia: This card effect is inspired by episode 134 of Duel Monsters where Kaiba and Yugi both clash in the coliseum right before Yugi summons Dark Paladin to claim victory against Kaiba. 

Additional card tips:

1. You can do combos with Destruction Sword by using this card since it is a Buster Blader card. 

2. This card can search Fusion cards like "Destruction Sword", "Super Magical", "Red-Eyes", Polymerization, Fusion Substitute, and etc. 

https://www.duelingbook.com/card?id=3590860