Lion-o has access to a semi-sentient sword with a bunch of interesting powers. It will come to his aide when he's trouble, it flies to his hand when he calls on it, and it gives him the power of Sight Beyond Sight to see events happening in real-time. It also can generate a force-field large enough to protect the bearer, and eventually he'll also be able to use it to send up a light signal that can be visible all over the island.I

In general, the sword's range is restricted to the island, so he can't use Sight Beyond Sight to see what's going on somewhere off-island.

Lion-o hasn't fully come into his powers yet, though, so whatever he's able to do with the sword will depend on the plot.