Support Items are items specific to the Spirit Board, which are used to assist the player.
Support items come in three varieties: Refresh Board, Battle Item, and Spirit-Freeing Item. Refresh Board items are used on the Spirit Board to adjust what spirits appear, Battle Items are used before a Spirit Board battle to make the battle easier, and Spirit-Freeing Items are used during the post-match minigame where the player must shoot the fighter through their shield. All three types of these items can be bought from the World of Light shops with SP and the Vault's Shop with Gold, won from spirit battles and Classic Mode playthroughs, found by Spirits in Explore, and received from scanning amiibo.
Refresh Board items are orange and resemble a piece of paper with the bottom-right corner being pulled up, similarly to how Spirit Board bounties resemble a piece of paper when posted. There are five items in this category:
Battle Items are green and resemble a toolbox. There are five items in this category:
Spirit-Freeing Items are blue and have a circle backdrop. There are two items in this category: