Omniknight

Purist Thunderwrath the Omniknight is a versatile melee strength Hero who can take on the role of a support or, occasionally, a semi-carry, depending on the player's play style. A holy and courageous Hero, Omniknight possesses abilities that excel at protecting and aiding friendly heroes. His heal doubles as a nuke and he can grant any friend Magic Immunity, as well as blessing allies with a physical invulnerability and regeneration. Few can escape the mighty and heavenly power of the Omniknight and he is a powerful ally in team fights. He is a mighty tank, and one of the most difficult heroes to kill.

Tips

 * Omniknight usually purchases a Mekansm and Arcane Boots to continually have heals during team fights and lane pushes.
 * Other slows are able to stack on top of your Degen Aura so it is fairly common to purchase a Shiva's Guard to be able to slow your opponents down even more than what you normally could.
 * You can use Purification to deal a lot of damage early on, or even causing first blood, especially at level 3 and 5.
 * Consider using Repel on enemies when for example the carry is under the effects of Ogre Magi's Bloodlust
 * Repel can completely block the effects of some ultimates, an example being Bloodseeker's Rupture
 * Guardian Angel can turn the tide of many battles! Don't be too shy when deciding when to use it.
 * Attacking an enemy who is running from you can give them time to escape Degen Aura. To keep them slowed, run with them instead.  Try to get ahead of them if possible.  Then you can hit them or heal while blocking their path.