mtg dragon deck commander Dragons - The Ur-Dragon - exile it instead of putting it into its owners graveyard The Ur-Dragon (Commander) | EDHREC

Even if you put a lot of mana into this, the odds of getting more than two or three cards out of it, let alone the four youd need to get your mana back

This is actually an incredibly clever card design

He comes in indestructible and his ability automatically triggers at end step, so this feels sort of like an Etali where you pay one mana more to guarantee at least one trigger while also draining your opponents for a bunch of life

As for the second scrap, it appears to be a black common from the set that has an unless its controller-type ability

Each deck from this set represents one of Tarkir's five clans, and has a prominent character from that clan and a dragon as possible commanders