urza's saga mtg card white border #114 holo from Mystery Booster 2 (MB2) Proxy Contains such powerhouses as Gaeas Cradle and Tolarian Academy Magic The Gathering Urzas Saga

This is likely due to the surprise Dinosaur sub-theme of March of the Machine with the tribe gaining several powerful new additions including Etali, Primal Conqueror, Ghalta and Mavren (showcase), Ancient Imperiosaur, and Kogla and Yidaro

A three-cost card, Mama Odie, Mystical Maven is a good card primarily because of its cheap cost and ability: This Going to be Good

Coldsteel Heart is an uncommon that has been reprinted multiple times throughout different Commander products

If you really want to, you can discard two artifact cards

Even a casting cost of 10 mana isnt enough to keep this one in check

This card similarly works well in Nekusar, the Mindrazer decks