garbagemule/MobArena — comment on commit 9161bead55804df52a4260049b2b336c23bdbc8e
File: src/com/garbagemule/MobArena/Arena.java line 705
By Sleaker:

well setting the health to 20 is fine. What heroes looks for is the EntityRegainHealthEvent - it needs to know that the player is regaining HP (RegainReason.CUSTOM)