Is there any way to use a Vector3 to resize and use a .Touched while being in another part?

I have tried pretty much everything but there must be some way. I have seen it before but I cant figure out how to keep it in another part. I have tried welding body positions and CFrames.

if key=='q' and almost then
			print('move')
			starting=false
			almost=false
			going=false
			local point=Instance.new('Part',game.Workspace)
			point.Anchored=true
			point.CanCollide=false
			point.Size=Vector3.new(2,2,2)
			local x=character.Torso.Position.X
			local y=character.Torso.Position.Y
			local z=character.Torso.Position.Z
			point.Shape='Ball'
			point.Transparency=.5
			point.BrickColor=BrickColor.new('Really black')
			character.Torso.CFrame=character.Torso.CFrame*CFrame.new(0,2,-20)
			point.Position=Vector3.new(x,y,z)
			for i=1,6 do
				local sphere=Instance.new('Part',game.Workspace)
				sphere.Shape='Ball'
				sphere.BrickColor=BrickColor.new('Really black')
				sphere.Transparency=.5
				sphere.CanCollide=false
				sphere.Size=Vector3.new(2,2,2)
				sphere.CFrame=point.CFrame
				sphere.Touched:connect(function()
					print('i')
				end)
				for a=1,10 do
					sphere.Size=sphere.Size+Vector3.new(1,1,1)
					sphere.Transparency=sphere.Transparency+.05
					wait(.025)
				end
				sphere:remove()
				wait(.5)
			end
			point:remove()
		end

This is just a small bit of it. This is the area in which the problem is.

Im going to use magnitude to get the distance to the other characters every so often and when they get to close they take damage.