Ravenous Trap Ravenous Trap can be great against decks milling huge chunks of cards via Mesmeric Orb or dredge cards
Finally, This Town Ain't Big EnoughThis Town Ain't Big Enough is another way to have a discounted five-MV spell
Arcane Infusion Beacon Bolt Brutal Expulsion Chaos Mutation Collected Conjuring Compleated Conjurer Corporeal Projection Crackling Drake Cryptic Pursuit Culmination of Studies Elemental Expressionist Elemental Mascot Epic Experiment Eruth, Tormented Prophet Etherium-Horn Sorcerer Experimental Overload Expressive Iteration Frenetic Sliver Galvanic Iteration Glacial Dragonhunt Heaven Sent Idris, Soul of the TARDIS Invasion of Kaladesh Jhoira of the Ghitu Kylox, Visionary Inventor Lilah, Undefeated Slickshot Muddle, the Ever-Changing Myra the Magnificent Nivmagus Elemental Pinnacle Emissary Ral, Izzet Viceroy Ral, Leyline Prodigy Run for Your Life Saheeli Rai Saheeli, the Gifted Sanar, Innovative First-Year Scarlet Witch, Chaotic Avenger Shaun, Father of Synths Sonic Assault Stella Lee, Wild Card Summons of Saruman The Tenth Doctor Vault 112: Sadistic Simulation

Like most Magic: The Gathering cards, the value of Portal to Phyrexia depends on a few consistent factors: its rarity, the printing and finish (regular or foil), its physical condition, and the set it was printed in (The Brothers' War)
Booster Box [Draft] Magic Commander Masters Keep track of your collection value over time