For starters, you have to face an attack before it will lock them down
Gallery and List of Phyrexian Language Cards Ajani, Sleeper Agent Batterskull Beast Within Blighted Agent Dismember Elesh Norn, Grand Cenobite (Judge promo + Secret Lair) Elesh Norn, Mother of Machines Glistener Elf Inkmoth Nexus Jace, the Perfected Mind Jin-Gitaxias, Core Augur Jin-Gitaxias, Progress Tyrant K'rrik, Son of Yawgmoth Lukka, Bound to Ruin Mental Misstep Nahiri, the Unforgiving Nissa, Ascended Animist Norn's Annex Phyrexian Arena Psychosis Crawler Sheoldred, the Apocalypse Sheoldred, Whispering One Tamiyo, Compleated Sage Urabrask, Heretic Praetor Urabrask the Hidden Vorinclex, Monstrous Raider Vorinclex, Voice of Hunger Vraska, Betrayal's Sting Plains (two versions) Island (two versions) Swamp (three versions) Mountain (two versions) Forest (two versions) What Sets Have Phyrexian Language Cards
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Since your opponents likely wont have too many heavy-hitters, removing a single high-value creature can win you the game