Use this right before a big rush (Round 98, 100, 120, or Boss skull phases). The attack speed boost also increases the frequency of passive hooks slightly, because the Navarch attacks faster.
If you’ve ever wondered, “Why is my Navarch not hooking the next BAD immediately?” or “How do I optimize its ability timing?” — this guide is for you. btd6central navarch cooldown
The Nautic Siege Core (Monkey Sub Paragon) provides a cooldown reduction to other Paragons, including the Navarch, while submerged. Use this right before a big rush (Round