They're one of the original 'tribal' creature types: fish folk has been a viable strategy since the very earliest days of Magic: The Gathering
This has been the most significant break from the norm by far, but it hasnt been the only break
If a match starts going in your opponents favor, you can use Sabrina to switch out a key Pokmon and swing the odds back in your direction
As is considered a normal part of an MTG sets lifecycle, Final Fantasy singles are, for the most part, plummeting in price
It doesnt change power and toughness, which is a bummer, but you get evasion, protection, and lifelink on a single card, and that should be good enough for heroic or Voltron builds, for a start
With proper use of instant spells, you can transform Zenos on someone elses turn, and use a variety of combos to defeat someone, and thus, secure the game for yourself