What's best about Sawhorn Nemesis in Graveyard Overdrive is that once the affected opponent dies , you can just cast something to recur it and then recast it for a different opponent
This does achieve some measure of randomisation
Worth noting that if they preview some more Scarecrows in Lorwyn Eclipsed, Ill likely buy a lot of very cheap Reaper Kings

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For this particular card, having Equipment attached to Cloud or any other Creature lets you draw cards, per equipped Creature
However, it does suit well to blacks style of gaining life in big chunks to pay out for resources, which is what well be doing in big swings with Beledros Witherbloom