According to the lore text at the bottom of the card, the creatures are trapped on a rock (possibly an asteroid.) Someone left behind an encrypted log recording the existence of slivers, either an unlucky explorer or, perhaps, a scientist involved in experimenting with the creatures, which would be a nice callback to the Riptide Project
It's left the picture, a.k.a
The turn this card hits the battlefield you can already start exiling your opponents decks and playing their cards
(The Winds of Change type being stronger than the ones that refill the hand.) It is a little bit of stretch, but I'm trying to find any inkling of discard
Set Sail on the Dangerous Azurite Sea Disney Lorcana TCG: Azurite Sea continues the story of Illumineers who were last seen celebrating the defeat of Ursula in Disney Lorcana TCG: Shimmering Skies until they were interrupted by chunks of the Great Illuminary, the repository of all stories ever told, falling off and plummeting to the ground
Some buyers of his giveaways reported getting less than a third of the value of what they paid for them.