It has largely looked like the same archetype since its debut in Astral Radiance, but it has gained Serena [Silver Tempest], which might make it a bit more consistent
Like the HBO series (as well as the books), the game is set in the Seven Kingdoms and the goal is to take control of the Iron Throne
Once Charizard EX gets fielded, you can basically just tear through everything that gets in your way
Experimental Frenzy is likely the most problematic permanent to bust up, followed shortly by Wilderness Reclamation and Search of Azcanta
MTG Final Fantasy products are priced like a high-value premium set ala Modern Horizons or Double Masters
Otherwise, the cards are quite similar, much like the Sabrinas Jynx from the Gym Challenge set