The Merchant helps replenish your graveyard, making it easier to chain extra turns, and High Market is hard to destroy, making it easier to assemble
By adding in ramp you negate this cost somewhat
This is because silver bordered cards are essentially jokes, which means designers are allowed to bend and break the card frame and design standards to fit as many ridiculous things as they want
A lot of the time when Im evaluating cards Im thinking whether they will fit into an existing deck, or go into one of the deck ideas I have
The lesson subtype wont affect my evaluation of many cards included on this list, but the whole collective could get better early next year
Smothering Tithe $440.16 Smothering Tithe is an infamously overpowered EDH card, to the point where it earned itself a spot on the Commander Game Changers list