To successfully finish this phase and get the assistant, you must collect at least 10 Prototyperion scrolls.
IMPORTANT: Remember to restart the game to get the reward pop up after collecting 10 scrolls.
Scrolls will be available in:
Hidden Creatures Maze
Monsterwood Happy Hour
Drop Elemental Dungeon
Food Time Challenge
If you are not able to collect 10 Protoyperion scrolls during the first phase or would like to get more Prototyperions, you can always buy a time-imited chest that contains scrolls after the first phase finishes.