While Evilswarm Ophion doesnt really affect the deck, its still a hassle, since its essentially immune to The Monarchs Stormforth, Enemy Controller and the like
While giving 500 Attack is beneficial, and forcing your opponent to target your stronger monster can be helpful, The Seal of Orichalcos is very restrictive
With 1900 ATK the Rockets a Level 4 powerhouse in Speed Duels, and it gets you a Blaze Accelerator card from your Deck or Graveyard
The Future of Korean Pokemon Cards As the Pokemon Trading Card Game continues to evolve globally, Korean cards may see increased attention: Growing International Interest : As Korean pop culture gains worldwide popularity, interest in Korean Pokemon cards may rise
Sure, it would defeat the appeal of a separate app to collect on, but I would buy that Palkia card in a heartbeat.