PVP is harder brecause you are fighting against other players.
I have a few tips of winning against other players time after time.
To start, this is my rule.
In order to use my rule to sucess, you either need to have more lives than someone, have a stronger sword than them, or get the first hit.
OPTION 1: More lives.
There are two ways to pull this off.
1:Eat a golden apple before combat.
The magical properties of the golden apple will give you two extra hearts, therefore fulfilling the extra lives property.
2:Drink a regeneration potion before combat.
The potion will allow you to heal faster than your opponent.
WARNING:This way does not work as well as the golden apple technique.
OPTION 2: Better sword
This option is simple.
Gain a more powerful sword than your opponent and you will be dealing more damage in combat.
This translates to your opponent dying sooner, hence a victory for you.
OPTION 3: First Strike
Getting the first strike means(most of the time) a victory for you.
If all goes according to plan,(they have the same sword material or less, you strike they strike pattern, etc.) you will win.
An easy way of getting the first strike is suprising them.
You can jump out of nowhere, but you will take fall damage and your enemy will kill you with ease, but I suggest sneaking up behind somebody or killing an AFK player.
AFK means Away From Keyboard.