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").
Kaitoptera - Yugipedia - Yu-Gi-Oh! wiki
Duelist Saga, Yu-Gi-Oh! Wiki
Yu-Gi-Oh! Wiki - Xtra HERO Infernal Devicer
Elemental HERO Flame Wingman - Infernal Rage - Yugipedia - Yu-Gi
HERO Strike Structure Deck, Yu-Gi-Oh! Wiki
Sol and Luna - Yugipedia - Yu-Gi-Oh! wiki
Vision HERO - Yugipedia - Yu-Gi-Oh! wiki
Xtra HERO - Yugipedia - Yu-Gi-Oh! wiki
Destiny HERO - Dreamer - Yugipedia - Yu-Gi-Oh! wiki
2-Player Starter Set Yugipedia Yu-Gi-Oh! Wiki, 51% OFF
Ties of Friendship - Yugipedia - Yu-Gi-Oh! wiki
Gem-, Yu-Gi-Oh! Wiki