The Leviathan does not need tricks. What it brings instead is a permanent jump in its blows, ×1.5, once it drops to 50% of its hull or below, announced once and never reversed for the rest of the fight.
It is the heaviest thing you can meet by accident, and the fight's clock does not stop for any of this.
What to expect
- The closer it is to dying, the more it costs to finish. Do not start what you cannot finish.