Although the effect is random, all the cards are powerful and you have a good chance of drawing one that can really help you in your duel. Magical Arm Shield, Breaker the Magical Warrior, Defender, the Magical Knight, Dunames Dark Witch, and Harpie's Feather Duster are mostly defensive and offensive cards at the same time.
Even though it is a great skill, it is not common due to the difficulty of getting it, but also because there are more decks based on other skills that are more consistent than this one.
How to beat/farm Yami Bakura Lvl 40
Best decks [3/27 updated!]
How to beat/farm Yami Bakura Lvl 50
How to beat/farm Yami Bakura Lvl 30
Dust Barrier | Decks and Tips
Fear the Deck of Terror! The Destiny Board of Doom: Yami Bakura unlock event
Two Fusion Dragons: deck recipe
High score Cerberus: deck recipe
Auto Duel Decks and Tips
Harpie: deck recipe
Gravedigger Ghoul | Decks and Tips
Exile of the Wicked | Decks and Tips
Union Attack | Decks and Tips
Pot of Benevolence | Decks and Ruling