mtg animal commander deck Chatterfang, Squirrel General Squirrel Tribal Token Sacrifice Magic MT – CommanderComplete MTG Commander Deck EDH Deck

That's what happens when you combine Tinker (which could get out the Jar almost immediately) with Megrim (so that your opponent would take 14 damage from a single Jar discard, assuming they could not play any cards in time)

Play in a multiplayer free-for-all and maximize your commander's strengths to make sure you're the last one standing!

Such a disastrous moment suddenly seems comical in this context

Ultima, Origin of Oblivion A blight for 5 color decks, Ultima here also is going to be an inclusion in many casual Eldrazi decks as a mana doubler who can deny mana or land abilities to your opponents

All-in-all, the upside to Mana Crypt is still worth it