The pendant would be nice early, as those stuns can make every bit of difference in early lanes, but it seems like mid game you would wish you had rushed an early malady or last whisper. I like stacking double bloodthirsters late too, but lately ive been going for frozen mallet first. Sion can strike some serious fear into people, as 1v1 he can take on most any character and win, the mallet stops them from running.