This also means you can incorporate discard synergy cards into your deck, since they play into your inherent theme
Even tutoring for a K-Grip in a Sidisi deck could be worth it
Salvation Swan A patently Bloomburrow take on Restoration Angel, Salvation Swan makes its predecessor proud
For most MTG sets, this isnt inherently a problem, as prices are slow to creep up over time
A lot of that is the fact that it's a symmetrical effect, and really only playable in mono-black, but I would argue that a much larger reason for this lack of play is simply that people are unaware of this dollar common from way way back in Urza's Destiny that has never seen a reprint despite not being on the Reserved List
The Sapphire/Steel deck accelerates resources to cheat out big characters early, the Emerald/Ruby deck had lots of character removal and ways to steal Lore from the opponent, and the Amber/Amethyst deck had lots of card draw and could pull off many tricks and combos