The opportunity cost to include them in your deck is so low that it often makes no sense not to play them, outside of a few hyper-specific cases
Suddenly supply of the packs had completely dried out and the prices started shooting up
2 The First Tyrannic War A fascinating Saga from the Warhammer 40,000 Commander decks, The First Tyrannic War is great for any deck that is dishing out plenty of +1/+1 counters, or any other counter that does well in multiples
Shimatsu the Bloodcloaked Shimatsu the Bloodcloaked presents you with a very tempting, and very bad, offer
Also, Thirst for Meaning is a common card, which makes it a card with a high appearance rate
There are quite a few possibilities: You could be discarding cards to their own abilities