I wish I could respond to level 7 mastery flashes with a "this is my first game with _" emote

This is the only emote I would ever consider using. When I'm trying out a champ in normals and the opponent is winning lane against me with their Legendary skin and spamming their mastery emote after doing something well, I would like the ability to quickly let them know that I am laning while reading some mobafire guide to figure out which ability to max first.