Merlin

Name: Merlin

Line: Exosuit powering up...

Property: Attack: 2    HP: 24

Ability: Taunt

Skill: Substitute [Shelter] Switch position with ally who has lowest HP and heal 10 HP to it.

Merlin is here only because of his Flying Device is cracked and fell when he's on his way to visit a friend, who lives in another planet. Alien science allows him to teleport and heal meanwhile.

Merlin is surely a life saver. To make the best of his skill, we need to know two things. One, after switching position, his Taunt can break enemy's former plans. This works very well when some allies are required to be at certain position while avoiding damage. Two, 10 HP healing is almost like half a recharge to most heroes. Imagine saving a Redcap by Merlin, she'll be able to deal at least 10 more damage. This contributes a lot when a hero with high damage is about to die. So in a word, Merlin should easily make the best choice of substitute.