Regil tank build.

+1 DEX each time.

Level 7 : Scaled Fist : Dodge, Crane Style
Level 8 : stigmatized Witch : Iceplant hex, Hare familiar, Wolf-Scarred Face
Level 9 : Vivisectionist : Outflank
Level 10 : Arcane Enforcer (Slayer) : Wooden Flesh
Level 11 : Armiger : Combat reflexes, Double Slice
Level 12 : Armiger
Level 13 : Armiger : Improved Critical : Sai, Weapon Focus : Sai
Level 14 : Armiger : (Weapon Training : Monk Weapon) x2
Level 15 : Scaled Fist : Improved Two Weapon FIghting, Improved Initiative
Level 16 : Vivisectionist : Greater Weapon Focus : Sai
Level 17 : Vivisectionist : Hammer the Gap
Level 18 : Vivisectionist : Greater Two Weapons Fighting
Level 19 : Scaled Fist : Shake It Off
Level 20 : Arcane Enforcer : Weapon Specialization : Sai

Mythic 1 : Last Stand
Mythic 2 : Two Weapon Fighting (mythic)
Mythic 3 : Archmage Armor
Mythic 4 : Weapon Finesse (mythic)
Mythic 5 : Beneficial Curse : Powerless Prophecy
Mythic 6 : Improved Initiative (mythic)
Mythic 7 : Abundant Ki
Mythic 8 : Weapon Focus (mythic) : Sai
Mythic 9 : Abundant Smite Chaos
Mythic 10 : Weapon Specialization (mythic) or Improved Critical (mythic) Sai