Welcome! I update (almost) Daily! And right now, I've got a potion idea!
Long arms potion!
Ingredients - Frog Legs, Bad Flower, and a Bone! (1 minute duration)
As the name implies, it gives you long arms!
You can run faster, and even smack people (deals knockback + damage in battle area)
Edit: The Smacking knockback from the long hands is a game rule that you can turn off with signs, but since the thing is so small, it should be 100 buttons, maybe even 50. (Thanks to @fervent oak for the idea of the sign!)
And also, don't forget to feel free to put your suggestions!