#3 Aleister Black
During the Superstar Shake-Up, Aleister Black was announced as one of the superstars who would be moving over to SmackDown.
Black had debuted in the WWE on the February 18th 2018 episode of Raw where he had defeated Elias, before forming a tag team with Ricochet as the two men had reached the finals of The Dusty Rhodes Tag Team Classic on NXT Takeover: New York as well as competing for the Raw and SmackDown Tag Team Championships.
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However, the team of Black and Ricochet had split up due to the roster changes as Black now seems to be destined for success on the blue brand. The fact that Black is also a former NXT Champion suggests that WWE trusts him more than enough to carry a brand by himself.
Due to Black's mysterious character, this makes him very unique as it sets him apart from all the other superstars on the SmackDown brand. Being on his own will allow him to get over with the fans independently, as this will increase the magnitude of his character.
Black has also clearly got used to life on the main roster, so he definitely can't be counted out as a superstar that can take the Intercontinental Championship away from Finn Balor.