Aside from the aforementioned Act on Impulse, weve been given Light Up the Stage and, more recently, Reckless Impulse
Fabricate is the only tutor in this deck for this particular win condition, but more often than not, you find that it wiggles its way to the top of your library sooner rather than later
That being said, Hanweir Garrison is no slouch either, and the two directly play well with each other even without melding
If youre building a multi-color elemental shell or the popular Dance of the Elements archetype, this is an auto-include that provides the kind of explosive ramp that wins games by turn four
The deck is also incredibly synergistic and most of the slivers have tribal effects which boost all slivers on the battlefield in different ways like flying, trample, double strike, etc