N2O
Though this is also the chemical makeup of laughing gas, it is more known as the kick-ass clan on MapleStory (otherwise known from here on out as MS). In order for this to work, N2O must be apparent at the very beginning of any typical verb, noun, or even adjective, to become a MS clan icon.
N2OSparkles, N2OHikoboshi, N2OZombie, N2OArmenda, N2ONikita, N2OVixen, N2ONoir, N2OXenon, N2OApples, N2OMomo, N2OShadow, etc.