You can obtain the Poison Barb (2-Diamonds rarity) card by opening Celestial Guardians: Lunala from Celestial Guardians set
Ademi of the Silkchutes Agent of the Shadow Thieves Ajani's Presence Akiri, Fearless Voyager Akroma's Will And They Shall Know No Fear Angelic Guardian Archangel Avacyn Azlask, the Swelling Scourge Bant Basri Ket Bast, Panther Goddess Bleeding Effect Blizzard Brawl Bonds of Mortality Boromir, Warden of the Tower Break of Day Bulwark Ox Campsite Cuisine Captain America, Skybound Cecil, Redeemed Paladin Dauntless Escort Destined // Lead Divine Resilience Duty Beyond Death Elspeth, Knight-Errant Endurance Bobblehead Ephemeral Shields Etchings of the Chosen Everybody Lives
His outrageous luck is explained in a comedic way by Kaguya-Sama: Love is War protagonist Shirogane Miyuki
Weakness and Resistance As with the video game, the Pokmon TCG has a weakness and resistance system in play, which can be seen in the bottom part of each Pokmon card
My head canon was that Hans, unlike his sister, had managed to escape from the original Lhurgoyf only to run into a similar creature years later