Plus, reanimating stuff from the graveyard is one of my absolute favorite things to do
The inability to make mana for things like Nissas Pilgrimage, From Beyond, Nissas Renewal, Ugin, the Spirit Dragon and basically any plain ol spell restricts you to a very creature-heavy build
Stage 1 Pokmon, many Trainers and Items
Our second Expertise in a row, Yahennis Expertise will be a heavily played sweeper in black-based midrange and control decks, but -3/-3 isnt necessarily a reliable way to clear the battlefield
Any "as [this creature] enters" or "[this creature] enters with" abilities of the copied creature will also work.
While some cards can still be bought for cheaper in other circumstances due to damage or use, the prices can actually go above the market price for twice as much