Having a solid plan for sideboarding is important for three reasons: You identify which cards you will be taking out and putting into your deck , as swapping out the wrong cards could greatly hinder your deck's ability to function
Loot, Exuberant Explorer Loot, Exuberant Explorer is really a Timmy card, an exuberant explorer that gives you additional land plays, then has a powerful cheat into play ability that really requires you to have tons of lands in play to benefit from
There are even some Commander decks that will synergize well with PuPu UFO, such as The Wandering MinstrelThe Wandering Minstrel
The interaction you get with Court Street Denizen, Minister of Impediments, and Sleep becomes incredible
She found it, still taped shut, and sent me photos
But If I need too I will definitely add those creatures if need be