What is Imba ?

Imba is slang derived from the word imbalance, used by players to describe a hero, item, or strategy that is excessively powerful and disrupts the balance of the game. An "imba" hero might have overly strong abilities, an item may provide too much value for its cost, or a certain combination may lead to easy wins. The term is often used critically, suggesting that the game element in question needs a nerf in future patches.

Example: When Monkey King was introduced in December 2016, his abilities were so strong that he could solo lane against three heroes and still win. This sparked criticism from the community, and he was quickly nerfed in subsequent patches.