In Xenoblade Chronicles 3, your party consists of six members. There is also a seventh slot you may fill with one of the many additional heroes you can find throughout the game. These heroes will be difficult to find due to the fact that Valdi is one of the easiest heroes to find.
Where to find Valdi in Xenoblade Chronicles 3
After you have completed the quests in Colony 4, you will be asked to go south and on the map. During your travels, you will meet Valdi, who lives in Colony 30. You will meet Valdi at a nearby rest location called Elsies Spout.
Valdi's first encounter with you will come as a surprise as she drops and immediately assaults you. Not because she believes you're evil, but because she wants to see you use your Ouroboros form.
How to recruit Valdi
After the battle is over and you have kicked Valdis out, you will begin the main quest that will assist you with finding the three pieces for a Levnis. The three pieces will be marked on your map nearby and will only take you a few minutes to grab.
After collecting the parts, you will be tasked with following Valdis Mini-Levnis up to Colony 30. This part of the quest may be a bit tedious since the Levnis likes to run into every enemy along the way. After defeating the Consul, you will receive a cutscene where you liberate Colony 30. This will unlock Valdi for future use as a hero on your team.