GCC Champions League
On 15 February 2013, Amer provided an assist for Haboush Saleh to score the fifth goal after individual skill in the box, in a Bani Yas 5–0 home victory over Dubai. On 26 February, Amer helped in a goal and assisted Yousif Jaber as Bani Yas defeated by Al Faisaly 3–4 in the GCC Champions League. On 3 March, he assisted Fawaz Awana the opening goal in a 1–2 away win over Dibba Al Fujairah. He added another assist in a 1–1 draw with Al Wahda. On 23 April, Bani Yas through to the semi-finals of the GCC Champions League in a 4–3 penalty shoot-out win against Al Muharraq (1–1 a.e.t.), Amer scored the first penalty, on the right of goalkeeper Sayed Jaffar. On 12 May against Al Ain, Amer set up the equalizing goal for André Senghor's header with a floated cross from the right on a 2–2 tie at Tahnoun bin Mohammed Stadium. Amer finished the season by lifting GCC Champions League with Bani Yas, after a 3–1 aggregate win over Qatari club Al Khor.