Quote from Mazyloron »Thank you for the suggestion! The sacrifice outlets are great as they prevent exile effects from screwing with the commander tax.
I previously had both Evolutionary Leap and High Market for that purpose. But these got cut eventually after testing as I usually end up having so much ramp that it was okay to pay the taxes a few times and still have enough to cast other spells.
I missed out Miren, the Moaning Well though, it feels like a good backup plan to sac a huge Multani for life.