Why won't my touched event activate after activating once?

So I'm trying to use the touched event to make so when a meshpart touches another player, they take damage. The touched event doesn't work very good for it because it only seems to activate once, and once it's already touching something, it won't activate again until it's not touching it. Is there a better way I could do this?

Local:

-- Player Related
local player = game.Players.LocalPlayer
local char = player.Character
local mouse = player:GetMouse()
local db = false

-- Replicated Storage
local repStorage = game.ReplicatedStorage
local iceEvents = repStorage:WaitForChild("Skills"):WaitForChild("Ice")
local iceEvent = iceEvents:WaitForChild("Ice")

-- Actual Event
mouse.KeyDown:Connect(function(key)
	if key == "z" and db == false then
		db = true
		iceEvent:FireServer(key)
		wait(5)
		db = false
	end
end)

Server:

local repStorage = game:GetService("ReplicatedStorage")
local iceEvents = repStorage:WaitForChild("Skills"):WaitForChild("Ice")
local iceEvent = iceEvents:WaitForChild("Ice")

local ice1 = script:WaitForChild("Ice1")
local ice2 = script:WaitForChild("Ice2")

local waitTime = 0.01
local transparency = 0.2

iceEvent.OnServerEvent:Connect(function(player,key)
	if key == "z" then
		local char = game.Workspace:WaitForChild(player.Name)
		local rootPart = char:WaitForChild("HumanoidRootPart")
		
		-- Making Ice Variables
		local ice11 = ice1:Clone()
		local ice21 = ice2:Clone()
		
		local ice12 = ice1:Clone()
		local ice22 = ice2:Clone()
		
		local ice13 = ice1:Clone()
		local ice23 = ice2:Clone()
		
		local ice14 = ice1:Clone()
		local ice24 = ice2:Clone()
		
		local ice15 = ice1:Clone()
		local ice25 = ice2:Clone()
		
		local ice16 = ice1:Clone()
		local ice26 = ice2:Clone()
		
		-- Settings Parents of All Ices
		ice11.Parent = game.Workspace
		ice21.Parent = game.Workspace
		
		ice12.Parent = game.Workspace
		ice22.Parent = game.Workspace
		
		ice13.Parent = game.Workspace
		ice23.Parent = game.Workspace
		
		ice14.Parent = game.Workspace
		ice24.Parent = game.Workspace
		
		ice15.Parent = game.Workspace
		ice25.Parent = game.Workspace
		
		ice16.Parent = game.Workspace
		ice26.Parent = game.Workspace
		
		-- Setting Transparencies
		ice11.Transparency = transparency
		ice21.Transparency = transparency
		
		ice12.Transparency = transparency
		ice22.Transparency = transparency
		
		ice13.Transparency = transparency
		ice23.Transparency = transparency
		
		ice14.Transparency = transparency
		ice24.Transparency = transparency
		
		ice15.Transparency = transparency
		ice25.Transparency = transparency
		
		ice16.Transparency = transparency
		ice26.Transparency = transparency
		
		-- Setting Positions of All Ices
		ice11.CFrame = rootPart.CFrame + rootPart.CFrame.lookVector*15
		wait(waitTime)
		ice21.CFrame = rootPart.CFrame + rootPart.CFrame.lookVector*20
		wait(waitTime)
		
		ice12.CFrame = rootPart.CFrame + rootPart.CFrame.lookVector*30
		ice12.Size = Vector3.new(25,25,25)
		wait(waitTime)
		ice22.CFrame = rootPart.CFrame + rootPart.CFrame.lookVector*40
		ice22.Size = Vector3.new(30,30,30)
		wait(waitTime)
	
		ice13.CFrame = rootPart.CFrame + rootPart.CFrame.lookVector*50
		ice13.Size = Vector3.new(35,35,35)
		wait(waitTime)
		ice23.CFrame = rootPart.CFrame + rootPart.CFrame.lookVector*60
		ice23.Size = Vector3.new(40,40,40)
		wait(waitTime)
		
		ice14.CFrame = rootPart.CFrame + rootPart.CFrame.lookVector*70
		ice14.Size = Vector3.new(45,45,45)
		wait(waitTime)
		ice24.CFrame = rootPart.CFrame + rootPart.CFrame.lookVector*80
		ice24.Size = Vector3.new(55,55,55)
		wait(waitTime)
		
		ice15.CFrame = rootPart.CFrame + rootPart.CFrame.lookVector*90
		ice15.Size = Vector3.new(65,65,65)
		wait(waitTime)
		ice25.CFrame = rootPart.CFrame + rootPart.CFrame.lookVector*100
		ice25.Size = Vector3.new(90,90,90)
		wait(waitTime)
		
		ice16.CFrame = rootPart.CFrame + rootPart.CFrame.lookVector*110
		ice16.Size = Vector3.new(115,115,115)
		wait(waitTime)
		ice26.CFrame = rootPart.CFrame + rootPart.CFrame.lookVector*120
		ice26.Size = Vector3.new(120,120,120)
		wait(waitTime)
		
		for i,v in pairs(game.Workspace:GetChildren()) do
			if v.Name == "Ice1" or v.Name == "Ice2" and v.ClassName == "MeshPart" then
				v.Touched:Connect(function(hit) -- Touched Event
					if hit.ClassName == "Union" and hit.Parent.Name ~= player.Name then
						hit.Parent.Humanoid:TakeDamage(math.random(10,20))
					end
				end)
			end
		end
	
		wait(3)
		
		for i,v in pairs(game.Workspace:GetChildren()) do
			if v.Name == "Ice1" or v.Name == "Ice2" and v.ClassName == "MeshPart" then
				v:Destroy()
			end
		end
	end
end)

Sorry if the server script is excessively long, but I hope I made it organized enough that it doesn't matter too much.