Instead, youre pushing people, gently, to attack elsewhere, while also getting to draw cards yourself
Once the board is open and Ruhan sufficiently suited up with our armory (Obsidian Battle-Axe, The Reaver Cleaver, etc.) and auras (Steel of the Godhead, Mantle of the Ancients, etc.), we can further ensure opponents are vanquished in timely fashion by copying our Commander via cards like Helm of the Host and Irenicus's Vile Duplication, which ignore the Legendary rule
Clarabelle Contented Wallflower might not be perfect, but she will draw fairly consistently
This is because of how useful double strike is for what the deck wants to do
You can make the case that other creature types such as crabs and even merfolk are sea creatures, but these Big Four have been batched on multiple cards and all tend to be big-mana, high-toughness creatures
And you get a 7/7 for 7 mana