Card effect
Revive Sacrifice: your 【Heluo】 heroes gain 5 temporary levels.
Skill
Undying Demon Body
Kai arms himself with demon armor, gaining 15 flat damage reduction (damage cannot drop below 5).
Upgrades
10lv
Demon armor damage reduction increased to 20; meanwhile, every 3rd basic attack grants a 200-point shield (does not stack)
40lv
In demon armor, every 3rd basic attack deals extra magic damage equal to 100% physical attack
100lv
Arms himself with demon armor at the start of combat
Awakened card
Kai
Perfect Revive Sacrifice: your 【Heluo】 heroes gain 10 temporary levels.
Heluo
Perfect Revive Sacrifice: your 【Heluo】 heroes gain 10 temporary levels.
Cards that grant this
Siblings
Gain 1 Kai and 1 Luna. When fighting together, Kai's first skill cast lets Luna cast her skill without limit for 7 seconds. Each time Luna casts her skill, Kai gains 40% attack speed.
How to obtain
Source: obtained from the shop, auctions and other channels