A'Kurru U'mbaya was a Wakandan bio-chemist who was empowered with the ability to transform his flesh into wood through his experiments. He used his powers to try to seize the throne. Shape-shifting: Icon has the power to transform his flesh into wood-- and his head appears elongated into an African mask. Although this wood seems more durable and impervious than normal wood, he is also able to control it to give him limited shape-shifting abilities, such as elongating his limbs and forming weapons with his hands. Icon can also cause a similar transformation in others-- transforming them into replicas of himself (without the shape-shifting abilities) under his direct control.
Nothing is known about Ms. Summers, save that she is a young mutant woman whom Bushwacker was contracted to kill by the Marauders. Bushwacker broke into her house and did so. Wolverine found her body and swore vengeance on Bushwacker. Summers was known to be a mutant, though her exact power is unrevealed. Given that the Marauders hired Bushwacker to specifically kill mutant creative geniuses, however, she likely had some sort of superhuman artistic insight.
