In terms of current market pricing, a raw ungraded copy in lightly played to near-mint condition typically trades between $300 and $500
Back when the base set was first released, this fiery lizard was the best pull you could get, and it still is today
Absolutely, Role Tokens can be sacrificed for the Bargain mechanic as they are both enchantments and tokens
Spells and abilities that were targeting that permanent and Auras and Equipment that were attached to that permanent arent affected unless the new characteristics of the object change the legality of those targets or attachments
While it is true that removing Jace, Vryn's Prodigy and Gideon, Ally of Zendikar from the format would still leave us with an expensive Standard, their presence exacerbates all the other problems we've been talking about
If you prefer collecting cards to deck-building, be sure to check out the latest rare Pokmon cards that have sold for sky-high prices