Mousesports began their history in League of Legends on February 5th, 2012, signing the players from team For Mother Russia, consisting of Flashy, BlorN, Blazzka, Nexiq, and PlagiaT. A month later, original members Blazzka, Nexiq, and PlagiaT would leave, being replaced by wewillfailer, Puszu, and Hmmer. However, despite these roster changes, Mousesports would disband their League of Legends division on April 20th of 2012. Two months after disbanding their League of Legends team, Mousesports would reform the section, signing MoMa, Candy Panda, Prothana, Dedrayon, and Dax.
Mousesports would participate in their first major tournament at the Elite of Europe invitational. In the playoffs of the event, Mousesports would take out SK Gaming in the quarterfinals and Moscow Five in the semifinals to advance to the grand finals. There, Mouse would fall to Curse Gaming EU 1-2, taking home second place from the tournament.
On January 21st, 2013, all of enVision accounts were permanently banned from League of Legends due to toxic behavior, he was subsequently suspended from the Riot Season 3 EU Live Qualifier as well as from the Riot Championship Series for one year.
Prior to the start of the Challenger Spring Season, mousesports acquired the roster of n!faculty, who had a spot in the tournament. The team went 0-8 in the first four weeks of the tournament before beating Gamers2 in both games of the fifth week. However, this was not enough to move them up in the standings, and they finished in the sixth-and-last-place slot, behind Reason Gaming.
After the departure of SozPurefect, Rawbin IV and Xaxus, a ranked 5's team named m0usesports0 was formed, climbing the ladder with a roster consisting of beansu, Dan, Jinsh, Sedrion, and MounTain. Jinsh was eventually replaced by Xioh before the roster sealed their qualification to the 2015 EUCS Summer Qualifier via the Challenger Ladder.
- enVision Ban : League of Legends Competition Ruling League of Legends Competition Ruling