the reason of why elder god noben still is a ocg exclusive card.

1)this card can easily summon with instant fusion

2)this card can easily access to xyz and synchro summon

3)this card can perform an otk combo:

only need 2 cards, "Instant fusion" in hand and "Vylon cube" in graveyard.

1)activate "Instant fusion" to summon "Elder god noden" from extra deck, activate "Elder god nodden" effect and summon "Vylon cube" from graveyard to field.

2)synchro summon a light lv7 synchro monster(MUST BE LIGHT), activate "Vylon cube" effect, add a "Re-fusion" from deck to hand.

3)activate "Re-fusion", then.........repeat all the steps until you have 4 light lv7 synchro monsters, OTK

lol, thats not the reason. Konami loves to keep the cards ppl in the tcg really want in the ocg for years.

I'm going to answer this with a "k"

its more like its "ocg exclusive" because it was made in Korea, iirc the artist is one of the crew doing Magic the gathering art.