(If it would be dealt damage or destroyed, remove a shield counter from it instead.) You may cast Merfolk spells as though they had flash
If you discarded a creature card (or, in some unusual cases, a noncreature card that can be cast as a creature spell), you may cast it using that permission
It's mechanically tied to Assassin creatures, but it could also work generically within the context of any Commander precon
I'm honestly impressed you're still reading if you're just here to see the card - if so, let's slap an image of it up early so you can call it a day
The strength of elves is a combination of their ability to flood the board with creatures and generate tons of mana, which can then be filtered into card draw or some sort of game-ending board pump effect
That said, the ability is flexible and might be useful in the late game when youre battling to gain hand advantage over your opponent