In a large skillet, heat the olive oil over medium heat. Add the shredded chicken and stir in the chili powder, cumin, garlic powder, onion powder, paprika, salt, and pepper. Cook for about 5 minutes, stirring occasionally, until heated through and well combined.
While the chicken is cooking, warm the tortillas in a separate pan or microwave until soft and pliable.
To assemble the tacos, place a generous amount of the chicken mixture onto each tortilla.
Top each taco with shredded lettuce, diced tomatoes, shredded cheese, and a dollop of sour cream.
Garnish with chopped cilantro and serve with lime wedges on the side for squeezing over the tacos.