It is a lot of trouble just to get that little bit of Mana, especially when mono blue Commander decks are often stacked with Mana rocks such as Mana Vault, Sol Ring or even a Thran Dynamo if all you need is colourless Mana
This can be particularly devastating in the late game, where often a single successful attack would have secured victory
Planar Disruption is one of the best Pacifism effect at the moment, since it can deal with multiple card types , turns off activated abilities and has a low cost
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
Instant Color tag templates(None) Mountain Basic Land - Mountain Color tag templates(None) Plains Basic Land - Plains Color tag templates(None) Raven Clan War-Axe When this Equipment enters, you may search your library and/or graveyard for a card named Eivor, Battle-Ready, reveal it, and put it into your hand