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
Deft Blades
Once two separate swords, they can be combined into a double-tipped sword when necessary. Barton wields it as if it's a swift wind sweeping all these enemies.
Solitary Courage
Passive
While in Lone state, normal attacks deal damage to 1 surrounding cluster. Non-target tiles receive 40% of normal damage.
Level details
Level 1
Total bonus stats:
ATK: 30DEF: 10HP: 50Counter Bonus: 3%
100
Level 2
Total bonus stats:
ATK: 60DEF: 20HP: 100Counter Bonus: 7%
5
400
10000
Level 3
Total bonus stats:
ATK: 60DEF: 20HP: 100Counter Bonus: 7%
10
800
20000
Level 4
Total bonus stats:
ATK: 90DEF: 30HP: 200Counter Bonus: 11%
5
500
30000
Level 5
Total bonus stats:
ATK: 120DEF: 40HP: 300Counter Bonus: 15%
5
500
30000
Level 6
Total bonus stats:
ATK: 120DEF: 40HP: 300Counter Bonus: 15%
10
1000
50000
Level 7
Total bonus stats:
ATK: 170DEF: 55HP: 450Counter Bonus: 20%
5
600
60000
Level 8
Total bonus stats:
ATK: 220DEF: 70HP: 600Counter Bonus: 25%
5
600
80000
Level 9
Total bonus stats:
ATK: 270DEF: 85HP: 750Counter Bonus: 30%
5
600
100000
Level 10
Total bonus stats:
ATK: 270DEF: 85HP: 750Counter Bonus: 30%
10
1500
200000