The owner of this deck hasn't added a sideboard, they probably should...
Start typing a card name and use the auto-complete feature to quickly select the card you're trying to add. Enter a quantity and add that card to your sideboard!
Submit a list of cards below to bulk import them all into your sideboard. Post one card per line using a format like "4x Birds of Paradise" or "1 Blaze", you can even enter just the card name by itself like "Wrath of God" for single cards.
This deck has been viewed 810 times.
With three colours, I would suggest some fetchlands I think there are three options for Pauper: Evolving Wilds, Terramorphic Expanse and Ash Barrens. Dual colour life-tap lands and bounce lands could also be of use.
Sure, sounds good.