Spicy Fish Taco Sandwich

Name: Spicy Fish Taco Sandwich
Ingredients: 1 Fresh Cod; 1 pint Beer; 1.5 cups Flour; 1 teaspoon Garlic Powder; 2 teaspoons Dill, fresh or dried; 4 cups Canola Oil, for frying; 2 cups Red & Green Cabbage, shredded; 1 Jalapeno, thinly sliced; 1/4 cup Apple Cider Vinegar; 2 tablespoons Oil; Pinch Salt + Pepper; 1/2 cup Mexican Crema or Sour Cream; 1/2 Avocado, mashed; 1/2 teaspoon Cumin, ground; 1/2 teaspoon Salt; 1/4 teaspoon Pepper; 1/2 teaspoon Chipotle, ground; 1/2 teaspoon Onion Powder; 4 sprigs Cilantro, fresh; 1/2 Lemon, juice; 4 Brioche buns; 1 Tomato, slice