mtg are conspiracy cards legal in commander Power Play · (CNS) #8 · Scryfall Magic: The Gathering Search As Conspiracy enters the battlefield Emissary's Ploy - Conspiracy: Take

That means that you can pay 5 Ink to play it on top of an existing Clarabelle luckily, one has been revealed for this set, with Clarabelle: Clumsy Guest, at a cost of one ink

24 Hazezon, Shaper Of Sand Desert Walker Extraordinaire Printed as a box-topper of Dominaria United, Hazezon, Shaper of Sand is a unique commander that incentivizes the use of lands with the Desert subtype

Any enters-the-battlefield abilities of the copied artifact will trigger when the token enters the battlefield

Remarkably, it works at instant speed, which is unusual for a discard effect

There's also the song card "This Growing Pressure" in this latest set

The elegant solution was to have Master of Waves create 1/0 creature tokens, then have the Master of Waves give them +1/+1