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However, there isnt a clear and obvious foundation from which to build this deck out

Depends on the definition of hard

You can cleave it as an alternate cost, and then you net a free spell for the turn, and I love it on an enemy's turn when you cast this for free, to bounce what your foe played and then drop a flash thing like Hullbreaker Horror or Ancient Stone Idol or you can just cast another instant that draws you cards

If you picked up the precon built around Omo, Queen of Vesuva, Skyserpent Seeker might be a good inclusion

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These also use Chansey, and simply scoop it up when it gets a lot of damage