dragon commander decks mtg Dragons/Reanimator - Scion of the Ur-Dragon Commander The Ur Dragon Tempest

While he begins by conniving to fill your hand as Norman Osborn, the goblin form is a beast that makes graveyard spells significantly cheaper

Creatures with ravenous feature an X casting cost, but they allow you to draw a card when they enter the battlefield if X is 5 or more

Moving on to Strixhaven (2021), we again find two also-rans and probably the most impactful cards with this mechanic at the time of writing in Card not found

Gamble Gamble is better than Entomb and Buried Alive in the right deck

That's why they are a spot better

If you have a 5/5 and an opponent attacks you, would you rather take 3, or take 5 and lose the ability to gain life