Kardur, Doomscourge is a fantastic commander for wreaking havoc on board states, forcing opponents to make suboptimal attacks and blocks, and sowing the seeds of chaos across the entire table
It is the cheapest of the four, making it a great entry point for new players on a budget
I think white might be a slightly better color for this, since you have access to Elesh Norn, Mother of Machines
If you have playset in your collection, you only need to spend one wild card to get four copies of that treatment
Theyre readable and sleeved like everything else
Naturally, the other problem with Magic is that, naturally, its a collectible card game, so the players who can afford to burn more money on it also tend to have better cards, especially if theyre doing things like picking up entire unopened cases