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Unwinding clock ftw. An opening hand with an unwinding clock and some quick mana production from mana vault can produce some quick, huge colorless mana. Think second turn darksteel colosus. With a puffer for +x/+x you can pump a goblin from rise of the hobgoblins or snake from the orochi hatchery to sac to a life chisel or attack with... Drop a prototype portal with any of the artifact land or another mana vault gets crazy.
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