How to get Emboar
Source: http://www.pokemon.jp/zukan/
When you perform an Island Scan at Poni Island on Saturday, Tepig will appear at Ancient Poni Path. Find Tepig before the time expires and capture it.
You can obtain a Tepig egg when you leave Emboar to the Pokemon Breeder.
If you raise Tepig up to Lv 16, you will obtain Pignite. By level 36, Pignite evolves into Emboar.
Thank you