Rhonin is a powerful mage of the Kirin Tor who, after being banished, was asked to run the mage group after freeing Alexstrasza and assisting in the defeat of the orcs in the great war. He is among those who survived the Scourge at Lordaeron. He is the one who taught Illidan Stormrage his magical abilities due to a time travelling experiment and inadvertantly failed to shift him from his destructive path.
Powers and Stats
Tier: At least 6-A
Name: Rhonin Redhair, Dragonheart
Classification: Human Mage
Powers and Abilities: Magic, Superhuman Physical Characteristics, Elemental Manipulation, Teleportation, Portal Creation, Telekinesis, Telepathy, Sword Mastery, Fire Manipulation, Summoning, likely far more with magical abilities
Attack Potency: At least Continent level (At least comparable to Jaina Proudmoore, who is roughly an equal in power to Thrall himself and even nearly flattened the capital city of Orgrimmar while Thrall attempted to stop her, should be able to withstand top tier dragons)
Lifting Strength: Unknown, possibly Class T via telekinetics (Dalaran is held up with telekinetic magic; as the leader of the mages in Dalaran it is not unfair to assume that his magic plays a significant role in keeping this up subconsciously)
Striking Strength: Unknown, possibly Class PJ (Should maintain magical powers superior to the Focusing Iris, which was going to flatten Orgrimmar; Orgrimmar is, as a city, a massive canyon mountain range with a sprawling metropolis inside)
Durability: At least Multi-Country level (While he is not shown to be amazingly durable, he has been shown to resist at least moderate damage from high tier enemies such as Arthas or Archimonde, although he was defeated both times)
Range: Several kilometers with base magic, possibly planetary with telekinetic ability, extended melee range with blades
Standard Equipment: Various magical relics, sword
Intelligence: At least Genius, regarded as one of the top humanoid experts on magic in general, potentially rivaling the power of the Dragon Aspects
Weaknesses: Limited pool of mana, seems to be something of a glass cannon.