They are more flexible than Treasure Cruise, are awesome in Simic Ramp with Cultivate stuff from Green or Izzet Spellslinger with Treasure makers for things like Guttersnipe or Dimir with Coffers and Urborg or with mono-Blue Nykthos, Shrine to Nyx
As for the Reserved List, it would be great if something would change, but at this point, I've mostly given up hope
Level up only as a sorcery.) LEVEL 2-3 3/3 Flying LEVEL 4+ 4/4 Flying Other Merfolk creatures you control get +1/+1
For 7 mana you get a 5/5 with two abilities
All you have to do is avoid being the target for the first few turns of the game!
Spawnbed Protector also feels quite pushed, letting you rebuy your best dead creatures while building your token army at the same time, on a body that worthy of the seven-mana investment