The art is just perfect, almost looking like a silhouette
Master of the Pearl Trident and Svyelun of Sea and Sky are two of the best cards in Modern Merfolk, to the point that the archetype almost immediately dropped Lurrus of the Dream-Den as a companion, primarily so it could run four copies of Svyelun of Sea and Sky
Not to mention, it allows you to add more cards into your hand if you make use of its Ohana ability
This means that, while you'll likely never be able to buy the great Human tribal Commander Rick, Steadfast Leader ever again, you'll be able to buy a card with an in-Magic-universe flavour that does the exact same thing and is treated as the same card in terms of deckbuilding limitations
Illustrated by Svetlin Velinov Standard Legal Alchemy Legal Pioneer Legal Historic Legal Modern Legal Brawl Legal Legacy Legal Comp
Urabrask's second ability isn't a mana ability, even though it causes you to add mana