Nevinhyralls Disk Hostage situations like Nevinhyralls Disk are a great way to make people not commit pieces to a board
That said, Possibility Storm was mostly unplayable from a competitive perspective because the deck-building cost was too high, until the right support mechanic (adventure sorceries) came along and made it into the centerpiece of a legitimate deck, so it might just be a matter of time until something breaks Unpredictable Cyclone as well
Improbable Alliance Improbable Alliance was my introduction to the power of some of these whenever you draw your second card payoffs
9 insanely strong cards released in Magic s very first set that are restricted in Vintage and not legal in any other formats
Admittedly, lands in Magic: The Gathering do not have any colour identity, so I might be cheating a little here
It is fine, reasonably on-theme but hardly an impressive power level