Staff of Domination Market Price: $11.38 This has a lot of abilities, but I'm confident in saying that a huge most of Staff's value proposition comes from its untap ability because that's what lets you produce infinite mana with Elves like Priest of Titania, Elvish Archdruid, and Marwyn, the Nurturer
Symbol: SP cards have a special symbol in the bottom right corner
You lose the card draw, but you protect all permanents you control with counters, including planeswalkers, and you tack on a free proliferate
To make sure this happens reliably, Panoptic Projektor makes casting Disguse creatures effectively free
I'm more worried about the seven people who still play Vintage and the Legacy players
If a spell or ability you control causes all the targets of a spell to become illegal, that spell doesn't resolve but it's not countered