The only caveat is if there's some artifact animation effect in play, like Katsumasa, the Animator that turns artifacts into creatures
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But replacing Yawgmoth with these cards in the command zone instantly lowers the power and amps up the goofiness of your black sac deck, so they might be nice to have on hand in case you walk into the LGS and everyone is actually shuffling up precons
20 Starting Town A Colour-Fixing Launchpad For Creature Strategies Starting Town can enter tapped, but its true strength lies in its ability to generate any colour of mana each turn
Counterspell was in Fourth Edition and was a staple card in any deck that included Blue
(2018-07-13) If an affected land has an ability that causes it to enter the battlefield tapped, it will lose that ability before it applies