mtg ur dragon commander deck The Ur-Dragon Dragon (Secret Lair Limited Foil Edition) Creatures Scion of the Ur MTG Commander Dragon Deck EDH

The clamp is so brokenly powerful it's insane

Kardur, Doomscourge is the only Goad-like effect that affects those creatures, so playing against a haste-happy opponent can be trouble

As for Arcane Artisan, I used to like it mostly as an enabler that dodged some of the hate-cards such as Containment Priest, as well as providing a non-symmetrical Show and Tell effect

The second choice seems the more useful option, but the two cards from the top can be good in certain scenarios

Being able to neutralize some of the best creatures in the formatlike Avacyn, Angel of Hopewill go a long way to enacting your Horror-laden plans