It is similar to Odin in that it can negate magic and traps in BP and is strong against attack reactions
Potion is classified as a Promo card in the PROMO-A set
From there, you are then still left with the option to cast the card as a Creature, which can be useful in a pinch
Commaner | Jason Alt Commander (1) 1 Samut, Voice of Dissent] Creatures (29) 1 Avacyn's Pilgrim 1 Avenger of Zendikar 1 Birds of Paradise 1 Bloom Tender 1 Captain Sisay 1 Craterhoof Behemoth 1 Dwarven Miner 1 Elesh Norn, Grand Cenobite 1 Elvish Piper 1 Gisela, Blade of Goldnight 1 Godsire 1 Intrepid Hero 1 Karametra, God of Harvests 1 Kiki-Jiki, Mirror Breaker 1 Knotvine Mystic 1 Krenko, Mob Boss 1 Mother of Runes 1 Rhys the Redeemed 1 Selvala, Explorer Returned 1 Selvala, Heart of the Wilds 1 Shaman of Forgotten Ways 1 Sigarda, Heron's Grace 1 Somberwald Sage 1 Sun Titan 1 Trostani, Selesnya's Voice 1 Viashino Heretic 1 Xenagos, God of Revels 1 Yisan, the Wanderer Bard 1 Zealous Conscripts Instants (4) 1 Beast Within 1 Krosan Grip 1 Path to Exile 1 Swords to Plowshares Sorceries (6) 1 Cultivate 1 Farseek 1 Harmonize 1 Kodama's Reach 1 Rishkar's Expertise 1 Shamanic Revelation Enchantments (14) 1 Anointed Procession 1 Assemble the Legion 1 Aura Shards 1 Awakening Zone 1 Beastmaster Ascension 1 Cathars' Crusade 1 Cryptolith Rite 1 Doubling Season 1 From Beyond 1 Growing Ranks 1 Mirari's Wake 1 Parallel Lives 1 Primal Vigor 1 Seance Artifacts (9) 1 Birthing Pod 1 Boros Signet 1 Chromatic Lantern 1 Gruul Signet 1 Lifecrafter's Bestiary 1 Mimic Vat 1 Selesnya Signet 1 Sol Ring 1 Thousand-Year Elixir Lands (36) 10 Forest 4 Mountain 4 Plains 1 Arid Mesa 1 Canopy Vista 1 Cinder Glade 1 Clifftop Retreat 1 Command Tower 1 Evolving Wilds 1 Jungle Shrine 1 Kessig Wolf Run 1 Rootbound Crag 1 Sacred Foundry 1 Selesnya Sanctuary 1 Stomping Ground 1 Sunpetal Grove 1 Temple Garden 1 Temple of Abandon 1 Temple of Triumph 1 Windswept Heath 1 Wooded Foothills Krenko, Mob Boss
It doesn't give you a shuffle effect, however, which makes Multiversal Passage a little worse in Legacy decks featuring Brainstorm
What makes Evigishki Gustkraken so good is its ability to constantly use its effect
