Commons and uncommons are rarely going to break the bank, but when it comes to rares and mythics, these can sometimes start off way overpriced, and you risk spending $20-$50+ on a card that ends up selling for $2-3 after a few weeks
Can Towns Be Fetched
Damage prevention effects can be useful with goad and other forced-attack mechanics like the one on Bident of Thassa
If a permanent phases in, its status changes to phased in. The game once again treats it as though it exists
More significantly, Honor of the Pure and other similar effects are big players alongside cards like Spectral Procession and Legions Landing in the white aggressive decks, and stapling Blade of the Sixth Pride with upside to your Anthem is a slam-dunk Cube inclusion for these strategies
In the end, whether you're looking to sell some cards or just enjoying Magic: The Gathering as a collector, you will ultimately find yourself with a stack of cards sitting in front of you wondering what they are worth