Flavor-wise, it keeps flying creatures away, like Scarecrows do
Maximizing Your Sideboard in Limited Unlike Constructed, where you carefully pick and choose the 15 cards that make up your sideboard, in Limited your sideboard is just whatever cards you don't end up playing in your initial main deck
All in all, its probably no surprise that Allosaurus Shepherd is my favourite card of the year, seeing as Ive even tried jamming it in Vintage (to little success so far, but I have high hopes)
However, versatility isnt what we want out of an Eldrazi, we want raw power and the ability to recover ground that was lost while you developed the means to cast said Eldrazi
Lets say your opponent casts Brainstorm
Sabrina strikes an imposing figure as a Gym Leader