Sigh.
It's always been suggested to sell relics by Zanz and the community. Buffing relics makes all of that advice become harmful and buffing relics is unfair to players that sold them (a lot of people).
How a useless buff would make that advice harmful. I mean, how a useless permanent would be more useful than a useless spell?
From an unbiased and reanalyzed (again) standpoint, this is where Zanz would need to be cautious with a buff to Relic. It's normally viewed as a rather useless card, but some players have stocked piled them over their gameplay (such as johannhowitzer who had at least 200 (
http://elementscommunity.org/forum/index.php?topic=23499.0) as of May of last year.)
A) An effective buff to relics (such as making it transform into a rare) could potentially cause complaints that veteran players that stockpile relics have an overwhelming advantage, while veteran players that didn't would complain about being "ripped off".
B) A buff to relic that encourages a player to keep six copies (such as other cards that interact with relics, or giving relic an ability) could be much more or much less problematic, depending on how powerful the induced buff is.
C) An underpowered buff would either result in no change in relic's use or a minor use for 'fun' decks (For example, turning into a random mark card or random pillar doesn't really mean much but I guess it would be useful for events and duel handicaps. Changing it's type into a permanent doesn't really do anything either.)
D) Let it be. Zanz does imply he just wants them to be free electrum and rare placeholders.
My Current Opinion
Option A. : Most Controversial, has the game favor players that stockpile relics (And potentially richer users depending on change.)
Option B : Medium Controversy given that you'd have to have at least 6 relics on hand. Most interesting change as it opens up another theme/mechanic for cards to develop with.
Option C : Least Controversial, and little impact on the actual game.
Option D : Self-explanatory.