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Whops, true.

Bitterblossom might actually be really good as it stalls Murktide.
The life loss together with Bob, Surgical and possibly Thoughtseize might be a bit much.
On that front Trespasser...

That looks certainly spicy.

As for wincons your GY should be stacked enough to support Anglers or Tombstalkers.
Bitterblossom might also work and supports Therapy.
Graveyard Trespasser // ...