While its a lot harder to play Ponder without fetchlands, it has been done to great effect on plenty of occasions
In this case, Blue seems to be the next logical choice, due to the amount of cards that support it, but Black is a close second place here as well
Swan Song, Counterspell, Dispel, Negate, Disdainful Stroke, Supreme Will, Misdirection, Foil, Disallow, Mystic Confluence, Unwind, Arcane Denial, Izzet Charm, Counterflux, Dissipate, Dissolve, Dismiss, Calculated Dismissal Countermagic
The internet immediately erupted in excitement at the real-life Willy Wonka's Golden Ticket moment, while collectors struggled to fathom what the first of its kind card could be worth
You can throw a spare mana into it to use later, rather like a cheap alternative to Coalition Relic
Crew 1 If Unidentified Hovership leaves the battlefield before its second ability resolves, the ability still exiles the target creature