Fischer - $8.91 Reprint From Exodus Culling the Weak allows you to generate mana by sacrificing creatures
Its a little pushed, sure, but only because of the framework around it I think this is a great example of what it takes to make white cards good in some draft formats, and how taking away some synergies can drastically alter the power of a card
If you look at the drafts in which someone is picking up the ones in two colors and the artifacts, this average is 0.16 per booster (6 cards, 2 per color not in that player's colors)
Black doesn't have much history with convoke, but it does have a wealth of mass reanimation, and it consistently gives you amazing results when maximized
Obviously, this isnt always the case, but when it comes to proxies and cards of that type, the general rule of thumb is that as long as youre upfront about them with your opponent and agree to work with them in your game, theyre fine
Otherwise, youll be wiping your own creatures, including Yshtola, too