Added 3 minutes later
Well, Lethos's plague mainly works against neutrals, and even then, only at the beginning. Its main value is the presence of Darkness, and if the map is large, you can find high-level Darkness creatures. Chaos is no longer effective in the late game, and even in battle, Tier 5 units can't withstand the impact. Like all races, it has its drawbacks and doesn't claim to be the best. As do the other races.
If you fight against Orcs with Lethos, who lack magic resistance, it will be fine. At the beginning, use plague, then berserk, etc.:smile54: