Peer pressure has a lot to do with it
This can be done with Mo Ye and/or Taia and the various Tenyi Monsters, followed by Strategist Longyuan for the latter card
Although many prefer Alela, Cunning Conqueror to build on playing on each opponents turn, Tegwyll plays actually good on that strategy too, since with Flash we can sacrifice our Faeries at instant speed on enemy attackers and get instant card draw and value
Booster Packs Future Sight booster packs come with 15 cards and one guaranteed rare
It's also a 1-drop with prowess, so it sees play in many formats including Explorer, Pioneer, and even Cube
For those pursuing Commander decks outside these strategies, very few of blues limited mana ramp and acceleration options are going to consistently make the cut