The Grail – what is it?

Why not? Morale is needed by everyone. For example, you have skeletal dragons and angels in your army. Their morale will be simply terrible, and in battle, one of them will often skip a turn. Another trick: the Colossus increases the morale of all friendly units, that is, angels, champions, monks, etc. Therefore, in some cases, the Grail is a useless trinket, the only benefit of which is in monetary units.