Loot, Exuberant Explorer, Bloodbraid Challenger, Ilharg, the Raze-Boar, and Emergent Woodwurm are all great at sneaking creatures into play without even paying for them
Deep Analysis sees competitive metagame play in 2 format(s): Commander, Pauper
You'll note that Puppeteer clique has Persist so if you didn't return it back to the battlefield with Nim Deathmantle it would return all by itself
Whispers in the Well will introduce IP like The Black Cauldron and Disney Gargoyles to Disney Lorcana, as well as a new classification of cards called Whispers
At 20 toughness you can untap your dorks, and then at 40 toughness you can force your foes to lose half of their life
In addition to being economical, this provides a great form of protection for cards key to your flying-based strategy