Question about Moro undead strategy

[DGDobrev]

It can. Sometimes, it's quite a nice option - it forces the enemy hero to use dispel on the Black Knights (since Rising Anger is quite an asset), thus forcing him/her to lose a turn rather than buffing the enemy army or using an offensive spell.

[Zechnophobe]

Anger is going to be worth less than the basic +8 Rage skill for the warrior until a fair ways into the game. +20% rage is the equivalent of 8 rage only once you have 40 rage, but doesn't confer the boost to max casting potential, so even then is not as good.

If you didn't realize it, when you gain rage, you actually gain a percentage of your total rage amount. Meaning that if you have 40 rage, and gain 4 on an attack, you would gain 8 instead if you had 80.