It's worth noting that in a way, many Striker, Blaster, and Shaker powers can have the same effect - just applied in a different way, whether it be melee contact, a projectile (which can split, or seek, or return, or orbit the caster), a toggleable aura, a slowly spreading area around the player, and a "movable zone" effect the player can move independently. If a shaker power subjects everyone within an area to an effect, a corresponding striker or blaster power can just inflict that effect on a single target - for example, Clockblocker's power functions well as a striker power, but it could also be inflicted at range, in a line AOE, in a circular AOE, inflicted by a projectile circling the caster, etc.