Each artifact you tap after youre done activating mana abilities pays for 1.) Chaos: Whenever you roll Chaos, you may search your library for an artifact card, reveal it, and add it to your hand
So yes, its about 5-10 times easier to get a nonfoil, and 2-3 times easier to get a foil, depending on if the card would be rare or uncommon
For example, Forgotten Ancient specifies you move its counters to other creatures , so you cant put +1/+1 counters on non-creature cards this way
Generally, red card advantage concerns EDH more than other formats, so this list will be geared towards getting value there
Black Mages Black-red does a wonderful job of recreating the feeling in FINAL FANTASY of spamming black magic repeatedly