Well, after several updates, Shakar's revenge finally got something that it can use to boost itself. This card is called Shard of Bravery, and is used in this deck to replace the slower Precognitions.
The decks:
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6s3 6s3 6s3 6s3 6s3 6u3 6u3 6u3 6u3 6u3 6u3 74d 74d 77l 77l 77l 77l 77l 77l 7tg 7tg 808 808 808 808 808 80b 80b 80b 80b 8pj
The original, most consistent but also the slowest build by ralouf.
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6s3 6s3 6s3 6s3 6u3 6u3 6u3 6u3 6u3 6ve 6ve 6ve 6ve 6ve 74d 74d 74d 77l 77l 77l 77l 77l 77l 7tg 7tg 7tg 80b 80b 80b 80b 8pu
Chapuz's build, it tries to strike a balance between speed and consistency.
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6s3 6s3 6s3 6s3 6s3 6s3 6u3 6u3 6u3 6u3 6u3 6u3 6ve 6ve 6ve 6ve 6ve 74d 74d 77l 77l 77l 77l 77l 77l 7tg 7tg 80b 80b 80b 8pu
My build is designed to be as fast as possible, but that does not help consistency.
Strategy:
Speed draw with Shard of Bravery, but be careful not to use up SoBes uselessly or to accidentally summon singularities. When you manage to draw the combo of Voodoo doll + a few Basilisk Blood + Gravity Force, stick enough basilisk bloods to allow the doll to survive with the gravity force on its back. Don't stick them all on yet, as you may want to stop a creature or weapon for 6 turns. Now wait until you can use one or more twin universes to multiply the inflicted damage to 200 HP, then do so. There are some other tricks that can be used to stay alive, so I recommend you find an old doll-based FG killer thread and read on that.