we have 1st Edition, Shadowless, Unlimited and even the 4th Print (which has gained recognition in recent times)
Notably, The First Doctor is available in the Blast from the Past Commander deck, but Paradox Power also loves utilizing the Cascade mechanic to trigger the new Paradox keyword
Among those six was a very lovely and incredibly detailed Porygon-Z IR by Gossan, and one of the 5ban Graphics ultra rare exes, this time Toxtricity
Gishki has several unique Ritual Spells, all of which summon monsters from the hand and use exact levels: "Gishki" Ritual Monsters have little consistency in their effects, but typically have an effect that activates on-summon
Its name is a reference to both Shark's first Number, Number 17: Leviathan Dragon (Levice Dragon in the OCG), as well as Shark's true nature as the Barians' leader