see Harry Potter film four ( Harry Potter And The Goblet Of Fire) with subtitles on. Watch the movie to find out
Polyjuice potion
A transformation potion ,a Polyjuice potion
Polyjuice Potion. It is used for transformation to look like someone else. It tastes awful and needs to ferment for something like 30 days and the final ingredient is a hair from the person you want to look like, but unfortunately Hermione took a cat hair instead of a human hair and was transformed partially into a cat.
There's the Polyjuice Potion, Shrinking Solution, Mandrake juice, Wolfsbane Potion, and others.
You can unlock Polyjuice Potion the second years in the story Potion's Classroom with Professor Snape. There is a glitch witch prohibit the ability to unlock. You can unlock the Polyjuice Potion by watching "Polyjuice Potion Intro" scene in movie theater on the second floor in "Leaky Cauldron. This unlock can result in another glitch that trap you in "Potion's Classroom" every time you want to visit Hogwarts. By restarting several times might undo the trap glitch. It's advised to export game save before you try to fix the "Polyjuice Poisson glitch".
There is no spell, the polyjuice potion does that.
use polyjuice potion
By taking the polyjuice potion.
Create polyjuice potion and add some dead cells of the "bad guy." Then drink it. I'll last an hour.
Amortentia also known as a love potion, Confusion Conncotion cause confusion, Draught Of Living Death this potion puts the drinker into a deep sleep seeming to be dead but not, Draught of Peace this potion calms anxiety and soothes aggitation, Felix Felicis also known as Liqiud Luck, Polyjuice Potion Changes the drinkers appearance, Veritaserum also know as the truth potion.
Nearly Headless Nick probably took his Polyjuice Potion by pouring it down his neck hole, since his head is nearly detached from his body. This method would allow the potion to reach his stomach, where it would take effect.
He doesn't have hair so no one could perform a Polyjuice potion on him