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I guess technically the creature targeted by Tawnos's Coffin isn't phased out, but that's the basic idea here

You wont see massive returns in the short term, but I would consider a vintage sealed pack something that should hold its value and gradually increase over time

Lady Tremaine Bitterly Jealous can return a damaged Character to the owners hand, which means you can target your and your opponents Characters with this ability

Dead Guy Ale builds are a totally different story though

Not so much a Commander card though

Being able to sacrifice artifacts and creatures interchangeably opens up a lot more ways to pay for sacrifice costs, especially if you have a consistent artifact token generator like Descent into Avernus