Gaze of Despair auto-taunts every enemy onscreen, making them more aggressive and increasing the point value of all the attacks that hit them.
The Moon of Mahaa-Kalaa is the most useful accessory by far. When you get good at it, the ability to block or counter enemy attacks will save your life more times than you can count (especially if you use it to cover yourself during your recovery animationsafter a mistimed dodge, for example). Selene's Light is useful for when you're still learning how to activate Witch Time without getting hit. Star of Dineta will let you slowly replenish your health by taunting. Buy it only if you find yourself taking a lot of damage regularly. Use it on the last enemy in an encounter. The Evil Harvest Rosary is essential for harder modes and enemies that disable Witch Time. Finally, make sure to save up 200k for the Bracelet of Time so you can buy it as soon as you unlock it.
Before you think about purchasing accessories, you should make sure to obtain a few essential techniques. Get Air Dodge, Stiletto and Bat Within ASAP. Later on, consider Crow Within and Tetsuzanko.
The Golem is easiest to defeat in hands form because it claps with a predictable rhythm, which makes dodging a breeze. If you stay in the right range, you can get it to attack as the hands most of the time. It should take no more than three Witch Time combos to kill.