In a bowl, toss shrimp with olive oil, chili powder, cumin, paprika, salt, and pepper. Let marinate for 10–15 minutes.
Grill (or sauté in a pan on the stove) shrimp on medium-high heat for about 2 minutes per side until opaque and slightly charred. Set aside.
In a small bowl, mix shredded cabbage with lime juice, olive oil, and salt to taste.
In a blender or small food processor, blend the crema ingredients until smooth.
Warm tortillas in a skillet or directly over the burner flame until lightly charred.
Assemble tacos with slaw, grilled shrimp, a drizzle of chipotle crema, and fresh cilantro.
Serve with lime wedges on the side.