With this build one should not write of corki at any stage of the game as the itemization allows him to freely excersise pressure and his strength around the map att essentially all stages of the game. Granted the early game can surely be fairly challenging without a lead as trinity force is one of the most expensive items in the game. However Corki still possesses a decently strong early game in the nature of the champion itself, multiplied by his w ability aswell as the package.