Consumables are Items that are held in an inventory slot below the equipment in the HUD - most can be used only once before being consumed. Consumables can be accessed by pressing Up + Left (or the left face button on console).
Backpack allows the player to carry an additional Consumable, accessed by pressing Left + Right.
Bag of Holding allows the player to carry an infinite amount of Consumables.
In Amplified, all Food also comes in a Magic Food variant. Upon consuming a Magic Food Item that would restore more Health than the player has Empty Hearts for, the player gains 1 Filled Heart Container (replacing any existing Cursed Heart Container(s)) for each Heart of healing past capacity.
Casts a "Need" spell, resulting in various effects depending on the situation.
The Scroll of Need will have one of the following effects, in decreasing order of priority. Note that an effect is skipped if it would have a lethal or invalid impact on the character (for example, Aria will not be given a Glass Rapier):
Two or more enemies are next to the player (either cardinally or diagonally).
Deals 6 damage to all enemies adjacent to the player.