Finisher Summoner Icons
For those of you who don't know two of the summoner Icons (The orbital strike and heart one) have an animation that appears after you kill someone. It doesn't affect gameplay in any way other than making it cool.
These are the type of summoner icons we need more of. These make it worth the buy. It adds something to the game that actually gives you a reason to want to change icons and collect them.
You should really start making more Icons like this, Riot