mtg skeleton commander deck ETLKJVBL for Box,Store and Protect for Mtg Decks and Cards with this Durable Card Storage Box,Designed Specifically for Mtg Players, Holding Roses : Toys & Games Golgari Skeleton Tribal Commander :

It lets you split the cost and time your removal, and still gets the second trigger from the face commander too

Not background necessarily, but some other line of text that says something along the lines of Whenever you sacrifice a Treasure token, give a creature a +1/+1 counter and trample until end of turn. That would make it a lot more interesting and powerful, but I suppose not every card needs to be great

This is definitely one of those commanders who can succumb to its own hubris

1/1 Goblin creature for Siege-Gang Lieutenant

While the set-up for the turtle may be appropriately slow, the payoff is explosive, and it could find a home in Modern quite easily