You want your bodyguards to be varanids, not crocodilians.
See, while crocodilians look more fierce, they tend to be slower on land, so you have to spend more prep work on buffing their mobility. On top of that, varanids are more intelligent, so they can coordinate with you on strategy more easily, when you want to flank an opponent. They're also nearly as tanky as crocodilians anyway. You want your crocodilians to serve as ambush guards, not mobile guard units.
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