Tokens act the same way as other permanents, but if they are removed from the battlefield (such as being returned to their owner's hand or sent to the graveyard), they cease to exist
It ETBs with energy, sure, but it can convert energy to creatures without tapping, which, of course, means you can generate infinite tokens pretty easily with the other cards here
The fact that its also an artifact itself adds even more synergy with cards that care about artifact count
Ultimately, choosing between the two will largely be a matter of personal preference, as both cards come with incredibly high price tags
Azurite Sea enchanteds instead lean heavily into the pirate/seafaring theming of the expansion, with characters, actions, items an locations reimagined against a cartographic background, bearing minamilistic drawings very reminicent of bare sketches