In a small bowl, mix chili powder, cumin, smoked paprika, garlic powder, onion powder, salt, and pepper. Pat chicken dry and rub with olive oil, lime juice, and the seasoning mixture.
Heat a skillet over medium heat. Add chicken and cook for 5–7 minutes per side, depending on thickness, until golden and cooked through. Chicken should reach an internal temperature of 165°F. Remove from heat and let rest for 5 minutes before slicing.
In a small bowl, stir together Greek yogurt, lime juice, cilantro, salt, and cumin until smooth. Taste and adjust seasoning as needed.
Slice avocado, halve tomatoes, thinly slice red onion, and prepare the corn. Warm tortillas slightly so they are easier to fold.
Lay each tortilla flat. Spread with a spoonful of sauce, then layer with arugula, sliced chicken, corn, tomatoes, avocado, red onion, and cheese.
Fold in the sides of the tortilla, then roll tightly from the bottom. Slice in half and serve immediately.