[21] On 5 January, Amer continued his good form with provided another assist from free kick for Yousif Jaber against Al Ahli in a 1–3 home loss.

[22] On 13 April, after came on as a substitute for Fareed Ismail in the 53rd minute, he provided an assist for André Senghor from a corner kick in a 2–2 draw with Al Nasr.

[24] On 16 May, Amer scored his first Champions League goal for Bani Yas in a 2–0 home win against Pakhtakor, to lead the club to reach the Round of 16.

[27] 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.

[28] 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.

[32] 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.

[33] Amer finished the season by lifting GCC Champions League with Bani Yas, after a 3–1 aggregate win over Qatari club Al Khor.

[34] On 19 July 2013, it was confirmed by numerous sources that Amer would undergo a two-week trial at Championship outfit Blackburn Rovers.

[39] On 2 July, Amer was officially presented as an Al Ain player at the press conference on a three-year contract for an undisclosed transfer fee.

[42] He won the AFC U-19 Championship 2008 with United Arab Emirates national under-20 team, he was also part of the squad at the 2009 FIFA U-20 World Cup in Egypt.

Amer made his international debut on 12 November 2009, in a friendly match against Manchester City at the age of 20. when he came on as a substitute at the beginning of the second half.