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
If you pick up a couple of UR/UB duals and a World Map, you could use those to splash the powerful Shantotto, Tactician Magician, which plays incredibly well with those spells
Some of the strongest cards the game has seen since launch have made their way into the card pool, bringing unexpected combinations and new features to colors that haven't seen them before
This deck has a bunch of cards that either produce tokens or creatures to recur so you can repeatedly sacrifice them to ping your opponents to death
Each of its owners final moments is remembered within the roiling stone
With recursion tools like Sun Titan, you can bring it back for repeated pressure and removal flexibility