Getting to dig for an artifact or enchantment and bringing it in with a shield counter is nice, and similarly, putting perma-buffs on your creatures or Commander is good too
The main issue with Cradle is that it accentuates your vulnerabilities
Tyranid SwarmTyranids are the ultimate parasitic predators, swarming planets, stripping their biomass, and repurposing it into more Tyranids
Then put all cards revealed this way that weren't put onto the battlefield on the bottom of your library in a random order
And while a lot of credit will go to Werewolf Pack Leader, what really seems to be bumping this deck over the top is the new rare green class enchantment, Ranger Class
Since each player can only control 1 Field Spell at a time, there is less chance of them being abused, by running multiple copies, so you can be a bit more lax with them