Season the fish on both sides with garlic powder, paprika, salt, and pepper.
Heat oil in a large skillet over medium-high heat.
Add fish to the skillet and sear without moving the fish for 3-4 minutes.
Flip and cook 2-4 more minutes, until cooked through and starts to flake apart.
Remove fish from pan and set aside.
Melt butter in same pan for 2-3 minutes, stirring often.
Add juice from lemon.
Drizzle over halibut and serve.
Enjoy!