6, Issue 3 promotional card is a "Van'Dalgyon the Dark Dragon Lord", released with Volume 6, Issue 3 of the Shonen Jump magazine
Well he also has the Gotsumon card, whose support effect doubles your attack power as long as your HP is higher than your opponent's, which it clearly is here
GSE Gold Secret Blackwing - Kris the Crack of Dawn X DARK Level 4 [ Winged BeastEffect ] ATK 1900 DEF 300 If you control a "Blackwing" monster other than "Blackwing - Kris the Crack of Dawn", you can Special Summon this card (from your hand)
When you knock out your opponent's Pokemon, you get a Prize token rather than a prize card
Its interesting, figuring out how hard to work
Admire the captivating illustration of this 260 HP Normal/Fighting-type Pokmon