To Special Summon "Uria, Lord of Searing Flames" using its own procedure, you can also use face-down Traps you control.
Once per battle, when an attack is declared involving your "Uria, Lord of Searing Flames": You can send 1 Trap from your hand or Deck to the GY; its ATK/DEF become the number of face-up Traps on the field and in the GYs x 1000, for the rest of this turn.
Once per turn: You can discard 1 card; add to your hand or Special Summon, 1 "Uria, Lord of Searing Flames", "Hamon, Lord of Striking Thunder", or "Raviel, Lord of Phantasms" from your GY, ignoring its Summoning conditions.