“The spiders come in side by side. Two by two and night by night. Who is food and who is thrown away?”
This is easier if you know your target has a black mirror. Use can set up your mirror and light a candle or whatever helps you to focus.
The get into a meditative state. Whatever way works best for you. Ritual music, candles ect.
Now visualize spiders crawling from your mirror into and out of your targets mirror. Imagine the entire room where the mirror is being flooded with spiders. Any kind of spider you choose will do nicely.
You can still do this if they do not have a black mirror or your aren’t sure. Its just easier on the mind to visualize it if you know they have one and what it looks like.
Do the same thing as above just will the spiders to go from your black mirror into their reality.
VAMPIRIC WAYS
You can add a bit of vampirism to this technique buy linking up to your spiders and Everytime they bite the target you get fed life force of the the target.
P.S.
But sure to close your mirror 🪞 and cover it.