Pugna is a ranged character. His primary attribute is intelligence. The hero is mainly taken as a midlaner. Most effective in the mid game.
Pugna is a very useful hero in team fights due to the Nether Ward ability, which works against opponents who use spells and Life Drain, which allows the hero or his ally to restore health during the battle. The Decrepify ability increases magical damage or helps the hero survive an enemy attack. Purchasing Aghanim's Scepter will upgrade Life Drain allowing Pugna to deal even more damage, and when combined with Aghanim's Shard, the ability will become an AoE ability, which will be especially useful in team fights.
Pugna was one of several children involved in a special temple ritual to find the reincarnation of the deceased Grandmaster. Without hesitation, Pugna laughed merrily and blasted his competitors with gouts of emerald flame. The regents of the temple hurried to take the child to his throne, but after five years of Pugna's reign, the temple itself was another pile of ash.