Electric Eel

This long river predator hides beneath dark water, drowned roots and muddy banks. It releases a stunning shock when prey, paddles or metal weapons disturb the water around it.

Electric Discharge: lightning, every creature in the same water within 15 ft makes a Tough save; a failed save deals 2d6 lightning damage and stuns the creature until the end of its next turn. A successful save takes half damage without being stunned. Once discharged, the eel cannot discharge again for 2 rounds.

Water-Bound: on dry ground its movement is reduced to a crawl and its AC becomes 9. A wooden pole, net or other nonmetal tool can move it without triggering Electric Discharge at the DN's discretion.