Generally, vintage cards tend to hold value more consistently, while modern card values depend heavily on current trends, competitive play, and reprints
Lastly, is the fun of it
However you chose to distribute them, whatever behaviors you chose to reward, you'd get the same promos next time aroundprovided you scheduled the same events
The deck also runs different variations on hand and graveyard heat such as Duress, Cling to Dust, Cremate, Rotten Reunion, and Vile Rebirth
You can use regular card sleeves for your original cards and clear card sleeves for your proxies so they can still be easily distinguished
Legendary Artifact Mythic Tomasz Jedruszek null/null NOT LEGAL Standard NOT LEGAL Future LEGAL Historic LEGAL Timeless LEGAL Gladiator LEGAL Pioneer LEGAL Explorer LEGAL Modern LEGAL Legacy NOT LEGAL Pauper LEGAL Vintage LEGAL Penny LEGAL Commander LEGAL Oathbreaker NOT LEGAL Standardbrawl LEGAL Brawl NOT LEGAL Alchemy NOT LEGAL Pauper Commander LEGAL Duel NOT LEGAL Oldschool NOT LEGAL Premodern NOT LEGAL Predh This spell costs less to cast for each creature card in your graveyard