Trying to do Burn Damage but the For Loop only goes to 8 or 7 and not 20?

I'm trying to do this thing with Burn Damage with a for loop but for some reason, It only goes to about 7 or 8 and doesn't go to 20...?

Anyone know whats going on?

CODE:

local Char = game.Players.LocalPlayer.Character["Left Arm"]
local player = game.Players.LocalPlayer
local damage = game.Players.LocalPlayer.leaderstats.Strength.Value + game.Players.LocalPlayer.leaderstats2.Damage.Value --How much it damages
local db = false --Debounce

Char.Touched:Connect(function(hit) --Touched event 'hit' is what touched
    --make sure it's not yourself
    if hit:IsDescendantOf(Char.Parent) then return end
    if not db then
        db = true
        local h = hit.Parent:FindFirstChild("Humanoid") --Check for humanoid
		local he = hit.Parent:FindFirstChild("Head") --Check for Head
		if h then
		    h:TakeDamage(damage) --Damage player
			script.Parent.DamageText:Clone().Parent = he
			script.Parent.PSound:Clone().Parent = Char
			Char.PSound:Play()
			he.DamageText.Text.Text = damage
				
			
			if player.leaderstats2.Power.Value == "Flame" and player.leaderstats2.Power.PowerEn.Value == true then
				for i = 1,20 do
					if he:FindFirstChild("Damage Text") then
					he:FindFirstChild("DamageText"):Destroy()
					else
						script.Parent.DamageText:Clone().Parent = he
					end
					local FlameDamage = math.random(1, damage)
					h:TakeDamage(FlameDamage) --Damage player
					he.DamageText.Text.Text = "Burn Damage: "..FlameDamage
					for g,f in pairs(hit.Parent:getChildren()) do
						if f:IsA("Part") then
							if not f:FindFirstChild(player.leaderstats2.Power.Value) then
								game.Lighting:FindFirstChild(player.leaderstats2.Power.Value):Clone().Parent = f
							end
						end
					end
					wait(0.3)
				end
			
			
			
			wait()
			he.DamageText.Text.TextTransparency = 0.1
			he.DamageText.Text.TextStrokeTransparency = 0.1
			wait()
			he.DamageText.Text.TextTransparency = 0.2
			he.DamageText.Text.TextStrokeTransparency = 0.2
			wait()
			he.DamageText.Text.TextTransparency = 0.3
			he.DamageText.Text.TextStrokeTransparency = 0.3
			wait()
			he.DamageText.Text.TextTransparency = 0.4
			he.DamageText.Text.TextStrokeTransparency = 0.4
			wait()
			he.DamageText.Text.TextTransparency = 0.5
			he.DamageText.Text.TextStrokeTransparency = 0.5
			wait()
			he.DamageText.Text.TextTransparency = 0.6
			he.DamageText.Text.TextStrokeTransparency = 0.6
			wait()
			he.DamageText.Text.TextTransparency = 0.7
			he.DamageText.Text.TextStrokeTransparency = 0.7
			wait()
			he.DamageText.Text.TextTransparency = 0.8
			he.DamageText.Text.TextStrokeTransparency = 0.8
			wait()
			he.DamageText.Text.TextTransparency = 0.9
			he.DamageText.Text.TextStrokeTransparency = 0.9
			wait()
			he.DamageText.Text.TextTransparency = 1
			he.DamageText.Text.TextStrokeTransparency = 1
			he.DamageText:Destroy()
			else
			
			
			
			
			wait()
			he.DamageText.Text.TextTransparency = 0.1
			he.DamageText.Text.TextStrokeTransparency = 0.1
			wait()
			he.DamageText.Text.TextTransparency = 0.2
			he.DamageText.Text.TextStrokeTransparency = 0.2
			wait()
			he.DamageText.Text.TextTransparency = 0.3
			he.DamageText.Text.TextStrokeTransparency = 0.3
			wait()
			he.DamageText.Text.TextTransparency = 0.4
			he.DamageText.Text.TextStrokeTransparency = 0.4
			wait()
			he.DamageText.Text.TextTransparency = 0.5
			he.DamageText.Text.TextStrokeTransparency = 0.5
			wait()
			he.DamageText.Text.TextTransparency = 0.6
			he.DamageText.Text.TextStrokeTransparency = 0.6
			wait()
			he.DamageText.Text.TextTransparency = 0.7
			he.DamageText.Text.TextStrokeTransparency = 0.7
			wait()
			he.DamageText.Text.TextTransparency = 0.8
			he.DamageText.Text.TextStrokeTransparency = 0.8
			wait()
			he.DamageText.Text.TextTransparency = 0.9
			he.DamageText.Text.TextStrokeTransparency = 0.9
			wait()
			he.DamageText.Text.TextTransparency = 1
			he.DamageText.Text.TextStrokeTransparency = 1
			he.DamageText:Destroy()
			end
		  end
		end
        db = false
end)
	end
					end
					wait(0.3)
				end