The draconic visage is a very rare drop from many high-levelled dragons, as well as Skeletal Wyverns.
Players with 90 Smithing (can be boosted) can combine an anti-dragon shield with a draconic visage to create a dragonfire shield. Doing so grants 2,000 Smithing experience. If the player doesn't have the required Smithing level, they can take the draconic visage to Oziach in Edgeville, who will assist in creating the shield for a payment of 1,250,000 coins. Completion of the quest Dragon Slayer I is required for Oziach to make the shield.
The following dragons or wyverns do NOT drop the draconic visage: Baby dragons, green dragons, blue dragons, red dragons, brutal green dragons, bronze dragons, revenant dragons, Fossil Island wyverns and quest bosses like Elvarg and Galvek. For a list of dragons that do drop the draconic visage, see the 'item sources' section.
For an exhaustive list of all known sources for this item, see here
|Adamant dragon||338 ||1||1/9,000|
|Black dragon Level 247||247 ||1||1/5,000|
|Black dragon Level 227||227 ||1||1/10,000|
|Brutal black dragon||318 ||1||1/10,000|
|Brutal blue dragon||271 ||1||1/10,000|
|Brutal red dragon||289 ||1||1/10,000|
|Iron dragon||189; 215 ||1||1/10,000|
|King Black Dragon||276 ||1||1/5,000|
|Lava dragon||252 ||1||1/10,000|
|Mithril dragon||304 ||1||1/10,000|
|Rune dragon||380 ||1||1/8,000|
|Skeletal Wyvern||140 ||1||1/10,000|
|Steel dragon||246; 274 ||1||1/10,000|
|Vorkath||392; 732 ||1||1/5,000|