Now the Wanted Monster is a side quest that can only be given to you by Livia. When you talk to her you can choose which wanted monster you want to capture and then the side quest for that monster will start.
Now Ignis is in the Northern area of the map at the Kelve Volcanic Region. After you pass the Giant dinosaur skeleton area, you’ll reach Kelve Volcanic Region. The exact location of the Ignis is shown in the picture below.
Now Ignis is 2 stars rated quest so, you should level up your skills to fight him and catch him. If your skills are not enough you wouldn’t even deal much damage to him causing you problems to catch him. Because you can only catch wanted monsters after you get them low on their HP. You can use your water laser spell on him because that will do a good amount of damage to him. After you get him low just catch him with the seal spell by pressing ZL.
Once you caught him just go to Livia and talk to her, she’ll give you the Crafting Bread x 1.