Token-heavy decks can often shrug and pay the sacrifice, so it shines more when boards are naturally thin, or when your deck can punish those sacrifices with extra value
Put simply, these sorts of two-for-ones are single, individual pieces of cardboard that either trade for multiple (i.e., "two") opposing cards, or deal with an opposing card while leaving a little something behind
Both lines have high Energy costs, and are fairly hard to keep balanced
And the first one, the Priest of Yawgmoth , does something that's going to be infamously replicated by some of the most game-breaking Yawgmoth-related cards, which is cheating out chunks of mana by sacrificing something
It's colorless, which means it can fit into any deck, and that ping ability says what every Commander player wants to hear: you just worry about drawing cards, I'll do the winning for you