Ya theres only one way to do this and idk if its possible to blink from color to color. But just make a clan tag animation that is like one line or however long u want it to be, and put a space after that animation and the next one. This will make it blink. Or u could make the animation like this

{*1}CLAN
{*0}
{*2} CLAN

Actaully disregard what i first said the 2nd one makes more sense