backup cards mtg Death-Greeter's Champion (March of the Machine Commander) shuffle all but one of your hands into your library. March of the Machine: Call

Personally, I preferred Inspirit, as charging feels very fun, particularly when your Spacecraft is at full blast

Even though Cloud, Ex-SOLDIER offers additional card draw for each equipped creature, it still ends up being far better to just focus on piling everything on Cloud and protecting him rather than spreading it out: you'll kill people faster with commander damage, you'll reap bigger rewards off stuff like Behemoth Sledge gaining you way more life, and it's simply easier to protect a single creature than trying to protect your entire board

There's even backend code to support it

This would be fine if pumping every Cube with a bunch of mana acceleration led to good gameplay, but frankly, it doesnt