Diplomacy in Heroes 4

Basic Diplomacy gives the hero the ability to convince 30% of greatly outnumbered hostile creatures to desert for a price. The hero can sway no more than 120 experience points of creatures, plus 10% per level of the hero. Also, the cost of surrendering is 80% of normal. Diplomacy doesn't work on creatures of an opposite alignment.

Advanced Diplomacy gives the hero the ability to convince 40% of greatly outnumbered hostile creatures to desert for a price. The hero can convince no more than 240 experience points of creatures, plus 10% per level of the hero. Also, the cost of surrendering is 70% of normal. Diplomacy doesn't work on creatures of an opposite alignment.

Expert Diplomacy gives the hero the ability to convince 50% of greatly outnumbered hostile creatures to desert for a price. The hero can convince no more than 360 experience points of creatures, plus 10% per level of the hero. Also, the cost of surrendering is 60% of normal. Diplomacy doesn't work on creatures of an opposite alignment.

Master Diplomacy gives the hero the ability to convince 60% of greatly outnumbered hostile creatures to desert for a price. The hero can sway no more than 480 experience points of creatures, plus 10% per level of the hero. Also, the cost of surrendering is 55% of normal. Diplomacy doesn't work on creatures of an opposite alignment.

Grandmaster Diplomacy gives the hero the ability to convince 70% of greatly outnumbered hostile creatures to desert for a price. The hero can sway no more than 600 experience points of creatures, plus 10% per level of the hero. Also, the cost of surrendering is 50% of normal. Diplomacy doesn't work on creatures of an opposite alignment.