Now isn't this a fun little guy? 65 energy, 95 courage and 85 wisdom at his maximum, he is a pretty strong creature to begin with. Then you go into his awesome ability. Healing all of his damage can be a maximum of 60 energy if you use it right, and even more if you raise his energy with mugic, battlegear, or other card effects.
If you infect all of the creatures on the board (all 12 creatures) you will be able to use his ability 4 times. At 60 energy per heal, that is a total of healing 240 energy. Put him in the right deck, and you will be set for the entire match! :).