Ice Age also talks about the main villain -- the necromancer Lim-Dl (who I will inevitably refer to as Lim-Dul at some point in this review)
More likely though, youre trading a mediocre creature for one that is game breaking on the current board, or drawing two to three relevant cards as a +1 ability
Should they complete the task, they will turn to crystal, and if they fail they will become Cie'th, or monstrous fiends
As a combo deck though that's fairly unfun, aggressive, and doesn't really fit the goofy theme of a giant whale ship, and also there's better ways to build more robust versions of the same thing
Carnage Tyrant is an appropriate name for the card, for sure
Its a little niche to be in a Top 20, but good enough to earmark