Items

Items are a finite resource shared between the warriors. While potions can be used by everyone, only a select few are able to use staves.

Only Rowan, Lianna, Lissa, Elise, Sakura, Celica, and promoted Corrin, Hinoka, Cordelia, Caeda, Linde, and Niles can access or use the staves.

The rest of the heroes are regulated to carrying only potions or a Bond Charm.

Healing Potions
These are items that can be given to a hero and taken into battle to heal, each variety more potent than the last.

Potions normally only heal the user when they are used, but the Potent Potion Skill Crest, Rowan's personal Skill Crest, allows the user to heal others as well when healing.

Staves
Staves (杖, Tsue) are items only able to be equipped by certain classes that enable the user to heal their allies. They come in 2 variants - Staves and Festivals (祭, Matsuri) - with Staves having 10 uses but limited range and Festals having longer range but only 5 uses. They have great utility during lengthy missions and boss fights.

Staves normally can't heal the user when they are used, but the Live to Serve Skill Crest, Lianna's personal Skill Crest, allows the user to heal as well when healing.

Use of these staves often make the difference between mission success or failure for difficult "Escort Villager" missions where the player must protect 3 helpless NPC characters with only 2 heroes covering a large map.

Bond Charm
Bond Charms (絆のお守り, Kizuna no Omamori) are an item introduced in the DLC packs, where they passively increase the amount of Support a unit gets from various actions, such as Dual Specials, taking out powerful enemies, taking forts, and doing objectives highlighted by other hero units.

To acquire C rank bonds, characters must simply be deployed onto the same map mission.

To quickly acquire B rank bonds, equip both characters with a Bond Charm, pair them together and slay approximately 17 TOTAL officer units with Dual Specials.

To quickly acquire A rank bonds, equip both characters with a Bond Charm, pair them together and slay approximately 40 ADDITIONAL officer units with Dual Specials.

(Officer units are denoted on the mission map with large red dots. This includes enemy hero units such as Frederick, Chrom, Lianna, or their Shadow versions).

Map difficulty DOES NOT MATTER, so easy A rank bonding may be accomplished in Story Mode, Easy difficulty, on novice levels such as the Chapter 2 Woodlands Encounter, within 4-6 runs.

There is one Bond Charm in each of the three DLC Packs. Like the other items, they can be earned as completion rewards or S-rank Clear bonus prizes.

Materials
See: Materials

Trivia

 * Bond Charms were added in Update 1.3.