how can i join server egg war in minecraft team extrem
I don't completely understand your question, but I'll try to give an answer.
1) You go on Cubecraft. (IP = play.cubecraftgames.net)
2) Use the compass in your inventory. Click on the dragon egg.
You should be in a lobby with Stained clay, granite and acacia wood.
3) Decide if you would like to play Eggwars on your own or in a team.
4) Once you've chosen for Solo (at your left side) or Team (at your right side), you can choose a map by clicking on one of the signs.
5) You are now in the map and it's time to choose a kit. You can unlock new kits in the pre-lobby (the lobby with clay, granite and acacia wood) by using the book in your inventory.
6) After 10 seconds the game starts. If you've chosen a kit, you will start with certain items or effects.
7) Search for the iron and gold generators on your island. These generators will spawn an amount of iron or gold in a certain amount of time. (1 iron every 2 seconds)
Hint: You can upgrade generators by right-clicking the sign. Once upgraded, they will spawn their ore in a shorter amount of time. (1 iron every second)
8) You can buy blocks, food, armor, etc at the villager with these ores.
9) There are diamond generators in the middle. You can buy better gear with diamonds.
10) You can also "fix" generators. Some maps have broken diamond generators which you can fix with diamonds from the middle.
11) The goal of the game is to break other players' their egg. Once, for example, purple's egg is broken, the players of team purple will not respawn after they have died.
