------------------------------------Sett------------------------------------
local SPEED = 90 -- default 25
local JUMP = 20 -- default 20

------------------------------------Init------------------------------------
local plr = game.Players.LocalPlayer

local function notify(text)
	game.StarterGui:SetCore("SendNotification", {
		Title = "Ability Changer\n",
		Text = text,
		Duration = 5,
	}) 
end

------------------------------------Main------------------------------------
-- Store the current humanoid so we don't reconnect signals multiple times
local currentHumanoid

local function applyStats(char)
	local hum = char:WaitForChild("Humanoid")
	currentHumanoid = hum

	-- Set the chosen values immediately
	hum.WalkSpeed = SPEED
	hum.JumpPower = JUMP

	-- Only connect once
	if not hum:FindFirstChild("StatsLock") then
		local lock = Instance.new("BoolValue")
		lock.Name = "StatsLock"
		lock.Parent = hum

		hum:GetPropertyChangedSignal("WalkSpeed"):Connect(function()
			if hum.WalkSpeed ~= SPEED then
				hum.WalkSpeed = SPEED
			end
		end)

		hum:GetPropertyChangedSignal("JumpPower"):Connect(function()
			if hum.JumpPower ~= JUMP then
				hum.JumpPower = JUMP
			end
		end)
	end
end

-- Apply to current character
if plr.Character then
	applyStats(plr.Character)
end

-- Re-apply when character resets
plr.CharacterAdded:Connect(applyStats)

notify("Changed speed to "..SPEED.."\nChanged jump power to "..JUMP .."\n\nCreated by Juice")