I was inspired by a gimmick I thought of after realizing that Gem of Hades and The Red Skull are basically the same thing. It is rare to see multiple UTs with the same abilities, and while these appear to have little value on the surface, I thought there was at least something that could be done with them. Thus, this fleet.
The strategy is nothing new; this is primarily an offensive fleet, with an emphasis on countering a gold rush strategy by way of negative UTs. The goal is to litter wild islands with traps, which enemy gold runners will hopefully come across. Gem of Hades and The Red Skull will ensure that gold runners are vulnerable to the cannon bonuses against cursed ships in possession by both ships, Enemy of the State will prevent them from docking at their own home island, Rotting Hull will reduce the rate at which they can ferry gold, and Pandora's Box would permit the addition of new instances of these UTs to be added to the game when found.
Peacock is the slower of the two overall, moving at S+S+S+S each turn, but her ability to avoid being pinned and 1S-2S guns (with buff) should aid her in tackling smaller treasure runners. Deliverance is the real star of the show, with 2S-2L-2L-2L-2S guns before the enemies find themselves cursed (provided they are not pirates initially), and 1S-1L-1L-1L-1S after. She moves at L+S+S, but with the 55% chance of a second action, she's capable of moving L+S+S+L+S+S in a single turn.
The focus on extreme speed and overwhelming firepower means that many gold rush fleets, even those which feature escort ships to keep their own interests safe, can be chased down by the staggering speed of these two ships, and knocked out by their firepower.
It's not a perfect fleet, of course. It may founder if faced with a war-focused fleet, like one featuring some of the game's top-tier warships, and it won't beat a cheesing fleet with Hai Peng. Pandora's Box also opens up the possibility for your opponent to bring UTs that favor themselves into the game, like Homing Beacon. I think it'd also be vulnerable to counter with Parley, and it would fall flat if faced by submerged sea monster or submarine gold runners, as it has no cancelers to fall back on. Equally, a well-equipped fog hopper fleet might be capable of bending this fleet out of shape, but that'd probably require some luck.