If you can find a way to recast it from your graveyard, say with a Mystic Sanctuary, you can stop your opponent from ever taking a turn
Sorcery speed is a big hindrance with threats such as Heart of Kiran and Glorybringer, and with all of the Gods from Amonkhet block having some form of indestructibility, I dont expect Walk the Plank to be the most-played black removal spell of the set
For example, I like to use my 9-pocket binder to store expensive and tradable cards
Smee card could be quite useful, helping you gain incremental lore without any adverse effects (assuming you manage to keep another pirate character in play at all times)
Assuming anyone actually plays any Merfolk
This allows Hazezon to fill a unique role within the Commander format, incentivizing the use of a sizable number of lands that don't see much play otherwise