The Role-Players If you need to sweep away little opposing creatures, you have the tool
Now that I have thought about it a few days, I think Solitude is clearly the better of the two, since it is not only a premium removal spell but also a viable win condition with its 3/2 body
Nothing else to really say about it but its very good if fleeting
An engine (value, draw, ramp) A payoff (finisher or threat) A support piece (enabler, glue) The deck does not function without the commander The commander does not meaningfully advance the plan The deck and commander are misaligned Clear roles lead to clearer evaluations
The first three aren't technically rats, but they are valued allies of rats everywhere
Starting with Walk-In Closet gives you a Crucible of Worlds effect, which is pretty amazing on its own