Come on in guys! I hope everyone is settled in on their new tribe. Immunity is up for grabs once again. Two idols are no more. From now on, it's only going to be a battle for one!



It's time for your fourth Immunity Challenge.. and speaking of battling...



For this challenge you will be matched up against a random member of the other tribe - seven matches total. You'll be on the platform in the middle of the ocean and will attempt to fight harder than your opponent.

There are 20 rounds of your duel - and you start with 10 health points. The person with the lower amount of health points at the end of 20 rounds will be shoved into the water.

There are three things you can choose to do in a round --

Shove

This is your main attack. Your opponent loses 1 health point if they are balancing. You both one health point if you both shove each other. If you are shoving and your opponent is blocking then you will lose 1 health point.

Block

This is your main defense. If your opponent shoves and you defend - you lose 0 health points and they lose one health point. If you are both blocking - nothing happens. If they are balancing when you are blocking - then they heal themselves two points.

Balance

This gives you two health points. If you are balancing when your opponent is shoving - you will lose one health point. If you are balancing when your opponent is blocking - you will add two health points. If you are both balancing at the same time then you will both add two health points.

Make a thread in your confessional and post a numbered list from 1 through 20. Each number has to have one of the three actions next to it. Then we'll compare each row against your opponents' same numbered row.

Whoever has less health points after the 20 round will be pushed into the water - and the other person will score a point for their new tribe. If there's a tie then no one scores - and if there's a tie after that then the team with the highest collective health points will win.

The tribe that wins four of the seven face-offs will win Immunity and be safe from Tribal Council. The losing tribe will vote out the fifth person of the season.

You have 24 hours to submit your lists.

Survivor's ready? GO!