mtg duskmourn room cards Mirror - Art Card (36/54) - Duskmourn: House of Horrors As a sorcery Mirror Room // Fractured Realm

Those plot counters have nothing to do with the plot keyword

Theres arguably pros and cons to phasing as a defensive mechanic, but being able to dodge literally any effect while preserving all the counters, auras and other buffs benefiting your team should make up for any slight drawbacks

Sliver Overlord + toolbox Slivers means you always have the perfect answer

There's even a thematically appropriate FF7 version of Heroic Intervention available in a Secret Lair drop

So who wants the 8/20 monstrosity

Howling Moon has the potential to hugely expand your board as your opponents cast spells, with a nice combat buff to boot