There are cheaper options that will be easier to get out earlier in the game like The One Ring, Scroll Rack & Sensei's Divining Top to consider too
At an early age, they began to see patterns in the tides and currents that eluded even the most esteemed scholars of their society
While its supposed to leave at the end of the turn, its 4/6 flying body is too large for most cheap removal, and it replaces itself by drawing a card upon entry
So, for example, if my [c]Celestial Unicorn[/c] attacks and then becomes tapped, it can still become the target of a fight card, like [c]Duel for Dominance[/c] or [c]Blizzard Brawl[/c]
Theres the modality aspect, too, and it gets around indestructible lands
The flash ability took this card over the top and made it too powerful for many to handle