At one point in the past, Tom Skylark found and fixed a Generation I Sentinel, altering its mutant-hunting directive and turning it into a protector/friend. He took up residence with the Proud People, and after they were destroyed, he took the Phoenix Egg and fled the Beast's armies. He later joined the X-Men and began a relationship with E.V.A.
Powers and Abilities
Skilled in mechanics.
Tom and Rover had a really close relations, stated to be "love" from Rover to Tom by E.V.A.. When E.V.A. and Tom stood together, Rover seemingly gave up the fight and was beaten, causing Tom to give up himself.