Auto-translated
The point is that hybrids will underperform with this system; it won't help them. To prevent them from underperforming, you need to give hybrids additional unique features (like in Dogma, for example). For instance:
A Warrior is strong, attacks multiple times per round, but his attacks aren't very powerful. A Mage can destroy an opponent with a single spell and at a distance, but is fragile and casts spells infrequently. A hybrid, however, can channel spells into their melee attacks. Their spells are weaker than a pure mage's, and they are less durable than a warrior, but their total damage per round is higher than pure classes, as long as they have mana. Of course, their mana will run out quickly, but they will have time to cause more chaos in the early stages of the battle.