Oops! You picked Dehaka and need a quick guide before you load in. I won't be explaining talents but will give quick notes.

Roachling is your very basic build. Should work for solo and duo tanking situations.

Speedling can be used if there is another tank on your team and you want to be a ganking MONSTER.

Ultralisk is if you are scared because the enemy team took so many dps characters and you want to be a frontline beast! (Full Tank)

Lane:

Always stay in range for passive stacks. Always.

Once at 30 stacks of your passive you can comfortably start bullying.
When bullying try to tongue lash, and unless you are trying to pull them off towers - don't use pull to pull.
Use the pull as a long stun and attack them while spamming that Dark Swarm.


-If in trouble use Burrow and Passive-

Teamfights:

Use dark swarm at start of fights and try to land it on as many players as possible to reduce its cooldown for more spam. Try to tongue squishy dps or healers. Burrow if major ulti's go down and if you have ulti use as soon as they start focusing you. If you have Isolation ult use it on enemy mages as fight starts.

Healing Ulti: If you notice them focusing you press R and before you die do the Burrow - Passive combo for a basic health reset. EZ.

Ganking:

1. Locate prey
2. Inform teammates that you will be ganking
3. TP to bush behind enemy
4. Run towards enemy with Dark Swarm active
5. When enemy starts running back use Drag.
6. Victory.