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

This power is redundant in 1v1, but in a multiplayer format, it offers a player a way to bypass the usual rules and sweep a win, forcing an interesting dynamic where other players need to protect Shinryus target

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

1/1 Goblin creature for Siege-Gang Lieutenant