Obsidian

Obsidian is an Elemental Synergy that is activated through the use of Dual Brave Burst. A bond pair with this Elemental Synergy requires one Earth unit and one Dark unit.
Upon using a DBB with Obsidian, a certain number of item slots containing Consumable Items chosen at random become refilled to the carry limit of those items, regardless of whether or not the quest started with fewer copies than the carry limit. For example, a player starts a quest with only 1 Ares' Flute. Upon using Obsidian, the player will have 3 Ares' Flutes. The higher the Bond Level, the more item slots Obsidian can refill and the more times the refill effect can activate.
Refilled items are restricted within battle only and cannot be added to the item inventory after battle.
DBBEffect_Obsidian_ArmaitiVohu.png|Armaiti and Vohu using their DBB, Will of Ohrmazd.
==Effect Potencies==
Bond Level	Potency
1 	Refill Consumable Items: Refills 1 consumable item slot Activation Limit: Refill effect limited to 1 activation per battle
2 	Refill Consumable Items: Refills up to 2 consumable item slots Activation Limit: Refill effect limited to 1 activation per battle
3~4 	Refill Consumable Items: Refills up to 3 consumable item slots Activation Limit: Refill effect limited to 1 activation per battle
5 	Refill Consumable Items: Refills up to 4 consumable item slots Activation Limit: Refill effect limited to 1 activation per battle
6~10 	Refill Consumable Items: Refills up to 4 consumable item slots Activation Limit: Refill effect limited to 2 activations per battle
==Synergy Progression Requirements==
==Errors==
*If, at any point, the player has with more copies of an item than its carry limit in the hot bar, using a DBB with Obsidian will decrease the amount of copies carried according to their carry limit.
**For example, taking the Sanctioned Supplies 4 item set in Frontier Spire provides the player with 6 Fujin Elixirs and 1 Hero Crystal; however, upon using Obsidian, the player will then have 3 Fujin Elixirs, regardless of item count.
==List of Units with Elemental Synergy: Obsidian==
Unit	Partner	Dual Brave Burst