My plan against dack decks (blue fair decks really) is +2 decay, +thalia, +chains, -1 hollow, -manglehorn, -2 others depending on what I suspect their plan is. Trimming Mana guys against wrath's, squee drs or goyf against RiP etc. Hollow one is too explosive and good as a bazaar threat / survival chain ender to cut too many even if it feels bad to have one stolen.
My shops plan has been +3 Stony, +2 energy flux, +nature's claim, +1 decay, -thalia, -2 kambal, -thorn, -chalice, -bob, -1 survival. The sideboard cards are real good. Survival is awkward to cast and can be revokered. The big idiots plan is actually ok without sb cards sometimes.