mtg cards that let you untap creatures Rules Text: untap, target, artifact, 92 Give me your favorite artifacts

This means you can easily play several songs in a row with Powerline in play , especially if you are lucky enough to have both Powerline and Max Goof on the table at once

You can allow infinite landfall triggers with creatures that put lands from your hand onto the battlefield and cards that bounce lands when they enter the battlefield

When thinking about how games are likely to play out, this reminds me of a planeswalker-heavy Superfriends style of deck, but without the vulnerabilities that planeswalkers have in Commander

When out it can be a bit of a chilling effect as people may not drop things you'll move to and beat them with before they swing

Yes, they can counter creature spells (they are no different to other spells)