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Regeneration spells?... So, a battle starts, you're out of artifacts that grant initiative, you don't have resurrection spells available either, and a volley of arrows from, say, 500 centaurs hits you. They have high initiative, and they'll act before your hero can. They take out about 15 of your paladins. And then you cast regeneration and wait for at least 15 rounds to heal? And you do this every time?