Build and battle killerblock kills you by TvGuy

local ownerUsername = "seven_souls2"
local owner = game.Players:FindFirstChild(ownerUsername)

if owner then
    local character = owner.Character or owner.CharacterAdded:Wait()
    local leftLeg = character:FindFirstChild("Left Leg") or character:FindFirstChild("LeftLowerLeg")
    if leftLeg then
        while true do
            local block = Instance.new("Part")
            block.Size = Vector3.new(1, 1, 1)
            block.Anchored = true
            block.BrickColor = BrickColor.new("Bright blue")
            block.Name = "KillerBlock"
            block.Parent = workspace
            block.Position = leftLeg.Position + Vector3.new(0, 2, 0)

            local face = Instance.new("Decal", block)
            face.Texture = "rbxassetid://241319253" -- Smiley face image ID
            face.Face = "Front"

            block.Touched:Connect(function(hit)
                local character = hit.Parent
                if character and character:FindFirstChild("Humanoid") then
                    character.Humanoid.Health = 0
                end
            end)

            task.spawn(function()
                while block.Parent do
                    local chat = Instance.new("BillboardGui", block)
                    chat.Size = UDim2.new(4, 0, 1, 0)
                    chat.StudsOffset = Vector3.new(0, 2, 0)
                    chat.Adornee = block
                    local label = Instance.new("TextLabel", chat)
                    label.Size = UDim2.new(1, 0, 1, 0)
                    label.BackgroundTransparency = 1
                    label.Text = "haha"
                    label.TextColor3 = Color3.new(1, 0, 0)
                    label.TextScaled = true
                    task.wait(0.001)
                    chat:Destroy()
                end
            end)

            task.wait(0.001)
        end
    end
end