This kit has everything you need to get started
Significantly lowering the power and toughness of opposing creatures would easily change the course of combat
Kicking things off, we have Winter, Misanthropic Guide
I believe Hanweir Garrison will be a perfect sideboard strategy for Grixis or Mardu control decks as a threat that can end the game quickly against ramp strategies
For instance: A deck with a commander that costs two mana may avoid 2mv ramp because it anticipates playing its commander on turn two instead of ramping
The White, Red, and Green (or, Naya) deck from this set is 'Limit Break', an Equipment-based deck that's built around the face of the franchise, Cloud Strife, as Cloud, Ex-SOLDIER