My sideboard is eternally in flux, especially as the metagame shifts. That being said, I would not register Bogles without at least three copies of Freewind Falcon and three copies of Standard Bearer. Falcon does a great job against red creature decks while completely ignoring Electrickery and other red sweepers. Standard Bearer and Celestial Flare come in for the mirror, but also against Quirion Ranger decks as it renders the untap ability less effective. In matchups where you bring in Bearer, it is often correct to load it up with Auras to give it the maximum amount of protection. I also always want the extra copy of Ram Through to double up on the ability to punch through.

Lifelink, Spirit Link and Hopeful Eidolon come in when you're trying to race. They can trade for less effective Auras or the Nyxborn Hydra if needed. Tamiyo's Safekeeping is a bit of a catchall and it is likely the deck wants more copies moving forward. Young Wolf is not as useful as it has been in the past but still has a place against removal heavy decks. Flaring Pain is another card that could earn an additional slot in the sideboard if Prismatic Strands and Moment's Peace decks increase in popularity. Aura Gnarlid is an old piece of technology that can come in handy. Like Ancestral Mask it counts your opponent's Auras so it can get out of hand rather quickly. It comes in for the mirror but also the Eldrazi ramp matchup.