After Sephiroth impales Cloud with his sword, the hero is somehow able to hurl the villain into a pit of liquid mako
Think of Sagas like really slow modal spell (except its an Enchantment, you never select a mode, etc.you get the idea)
The Sauron starter deck, meanwhile, contains a range of dark creatures with powerful abilities but each relies on Lands being played, slowing down the pace of attack and requiring various blocking strategies to stay alive long enough for a killer hit
In fact, it cannot even be played
Pikachu ex (Mega Rising) is not available in Rare Packs
Together, they show why the format has caught attention so quickly, offering anime nostalgia, modern competitive relevance, huge monster artwork, premium rarity appeal, and the kind of full-card presentation Yu-Gi-Oh