Solar Core

The solar core is an Currency Item that is obtained from defeating the Solar Paladin, a rankup boss. It is traded at the Mesa Landmark for one of three items, the Solar

Barrage, the Solar Molar, and the Hermes' Sandals. Only one of these can be obtained per player, making this an important decision.

Obtaining
Upon defeating the Solar Paladin, the player is able to complete the quest "Special Mission: Elder Rank" at the NPC, Gerald, rewarding them with 1 solar core. This quest can only be claimed once, which is why each player can only claim one, however, it is possible for another player to sell their own, leaving it open for another player to purchase, and thus obtain 2 or more Solar Cores.

Spending
The solar core is a currency item, meaning that it isn't a useful item on it's own but must be used at a trader or similar in order to gain access to a useful item. The solar core must be traded at the Mesa Landmark at trader offering one of three items for 1 core each.