Madwand

Madwand by Roger Zelazny Pol Detson son of Lord Det of
Rondoval has come home. He is now a powerful sorceror of
unsurpassed natural ability – in a world where the power
of magic is the only kind that matters. But Pol is still
an untrained talent a MADWAND. To take control of his
powers to rule in his fathers place he must survive
arduous training and a fantastic initiation into the rites
of sorcery. As friends Pol has one dragon and one thief.
As enemies he has the most powerful wizards of the land.
And at least one of them wants him dead.