Development and updates on this website have come to an end. There won't be any more update in the foreseeable future.
More details here 
Barton: Deft Blades
Dual Blade Advent
Active
20
Consumes 20 Lone Energy to enter Lone state in the current round, increasing Chain Combo range and damage. At the end of the round, if the remaining Lone Energy at the end of the round is no less than 10, remaining Lone Energy will be cleared and retain Lone state in the next round.
Lone Energy: Barton: Deft Blades gains 1 point with every normal attack.
Panther's Prowl
Chain
2813
Normal State: Gains 3 Lone Energy and deals 160% damage to 1 surrounding cluster.
Lone State: Deals 170% damage to 12 tiles in a diamond shape.
Lone State: Deals 170% damage to 12 tiles in a diamond shape.