Xtra HERO - Yugipedia - Yu-Gi-Oh! wiki

Xtra HERO (Ｘ・ＨＥＲＯ（エクストラヒーロー）, Ekusutora Hīrō) is a sub-series of the "HERO" archetype that is comprised completely of Link Monsters. It is the first, and currently only, sub-group of the "HERO" archetype that has not been used by any character in any of the anime or manga, and is the first "HERO" theme to be introduced since the Yu-Gi-Oh! GX era (excluding the illegal "E☆HERO" monster and "Contrast HERO").

Extra Veiler - Yugipedia - Yu-Gi-Oh! wiki

Structure Deck EX: Evil Domination - Yugipedia - Yu-Gi-Oh! wiki

Destiny HERO - Dreamer - Yugipedia - Yu-Gi-Oh! wiki

Elemental HERO - Yugipedia - Yu-Gi-Oh! wiki

Xtra HERO - Yugipedia - Yu-Gi-Oh! wiki

Yu-Gi-Oh! Forbidden Memories, Yu-Gi-Oh! Wiki

Card Errata:Fusion Destiny - Yugipedia - Yu-Gi-Oh! wiki

Xtra HERO, Yu-Gi-Oh! Wiki

Legendary Hero Decks, Yu-Gi-Oh! Wiki

Speed Duel GX: Duelists of Shadows, Yu-Gi-Oh! Wiki

Express Pack - Yugipedia - Yu-Gi-Oh! wiki

Yubel (character), Yu-Gi-Oh! Wiki

The Grand Creators - Yugipedia - Yu-Gi-Oh! wiki

Xtra HERO, Yu-Gi-Oh! Wiki

Heroic Call - Yugipedia - Yu-Gi-Oh! wiki