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").
Elemental HERO Divine Neos - Yugipedia - Yu-Gi-Oh! wiki
Extra Veiler - Yugipedia - Yu-Gi-Oh! wiki
Special Summon - Yugipedia - Yu-Gi-Oh! wiki - Prevents your
Kaitoptera - Yugipedia - Yu-Gi-Oh! wiki
Xtra HERO, Yu-Gi-Oh! Wiki
Xtra HERO, Yu-Gi-Oh! Wiki
Armed Neos - Yugipedia - Yu-Gi-Oh! wiki
Ties of Friendship - Yugipedia - Yu-Gi-Oh! wiki
Dimension Force - Yugipedia - Yu-Gi-Oh! wiki
Elemental HERO Rampart Blaster - Yugipedia - Yu-Gi-Oh! wiki
Wing Requital - Yugipedia - Yu-Gi-Oh! wiki in 2023
XYZ Combine - Yugipedia - Yu-Gi-Oh! wiki
Xtra HERO Infernal Devicer (Master Duel) - Yugipedia - Yu-Gi-Oh! wiki
The Roids are Alright - Yugipedia - Yu-Gi-Oh! wiki