How can I put a walking/running and jumping/falling animation for my tool?

So basically my other post got taken down for not being descriptive enough I think so this time i'll milk out all of my information even if it's useless. I have a sword called Lantern Sword and I have an idle animation put on my tool when it's equipped and it goes back to normal when it's unequipped, when I walk my idle animation is top priority and is playing over my walking animation so it breaks my walking animation, so I'm trying to make a new walking animation that has a higher or the same priority as my idle animation so 1. it doesn't look like i'm breaking my leg while i'm walking and 2. so when I start to walk it doesn't look like an awkward transition from idling to walking, I also was a jumping falling animation for my tool please I don't know how to do any of this as i'm very new to scripting so call me a noob or whatever but I'm forced to do this because I don't have enough robux to support my game with full time developers so if i can't get through this 1 script I can't continue my game, If you guys want to see my idle script this is it.

script.Parent.Equipped:connect(function()
idle = script.Parent.Parent.Humanoid:LoadAnimation(script.Parent.idle)
idle:Play()

end)

script.Parent.Unequipped:connect(function()
    idle:Stop()
end)

all this is is a simple play anim when equipped but i don't know if this script works with any other animation types, please and thankyou.