mtg cards that untap artifacts The Pandorica - Artifact - A way to continuously untap

This refunds you 1 mana for the dragon, 2 if it lives through combat

As mentioned, Jeska, Thrice Reborn is a stellar option, and you can essentially play classic Teferi, Temporal Archmage + Chain Veil in up to 3 colors in that way, or pivot into Professor Onyx for an infinite copy line to kill the table

It can also be played as an interrupt

This is probably intended to stop some kind of infinite loop, but its also a hilarious way to snuff out some synergy with last years Assassins Creed set

For anyone who has learned the basics of Magic and is looking to explore the game on their own, the Foundations Starter Collection is a great gift