Here's the thing: how fast you collect the set (how many drafts you need to do, which is proportional to how many gems you need to spend, since you can't "go infinite" with ranked drafts) depends MUCH more strongly on how many "new" Rares you collect each draft as opposed to how many games you win
Since nearly all games (including all official tournament formats) are between two players, this is an instant win for the player who activates it
For each one, create a token that's a copy of it
Adventures in the Forgotten Realms (AFR) 424 cards Released 2021-07-23 $534.40 493.42 13.98 TIX In Boosters 281 cards Borderless Planeswalkers 5 cards Alternate-Art Borderless Cards 12 cards Showcase Cards 60 cards Extended Art Cards 37 cards Buy-a-Box 1 card Promos 6 cards Alchemy Cards 22 cards Their mind whirled with grand plans, never thinking of what might happen if they got to the end of the list
At the same time, that cost can be a huge barrier to entry
Officially, there are only 39 of these cards, though 2 more were never handed out, bringing the actual number to 41