Chen Mo chose Shockwave for Crossbones Brock Rumlow. He could unleash powerful shockwaves from his chest and hands, with astonishing destructive power.
This ability could be used not only for ranged attacks, but also at close range or even while in contact with a target. With deliberate control, there would be no visible trace of the shockwaves at all, and people would only think the destruction had been caused by his fists!
Hill would be responsible for the newly formed HYDRA organization in the future, so she did not have particularly high requirements for combat strength. After gaining telekinesis that balanced offense and defense and could probe and manipulate people's consciousness, along with self-healing and teleportation, her safety and strength were absolutely guaranteed. She already had enough abilities, so the final ability Chen Mo enhanced for her was entirely based on his own preferences. According to Hill's temperament, he gave her Ice abilities!
She could freely create and control ice, regulate the temperature of her surroundings, produce temperatures as low as minus 76 degrees Celsius, freeze moisture in the air, and use ice to create objects of all shapes, such as ice spikes, shields, stairs, and even houses!
Combined with telekinesis, Hill could control ice spikes as freely as Chen Mo and use them to attack, giving them considerable killing power.
As long as Hill wished it, she could create a world of ice and snow anytime, anywhere, or even construct a castle of ice and snow, like an ice goddess.
But this was purely Chen Mo's personal preference. In truth, Hill would not have many occasions to use this ability. More often, she would probably use it to chill herself a drink or cool down when she felt hot.
Old Albert's remaining ability was likewise not meant for combat.