The Dark Silver Ingot is an endgame material that you use to craft endgame items. However, it is a bit complicated to craft if you are not well prepared.
V RISING How to get DARK SILVER INGOT
When you reach the end game of V Rising, you will find that you need a lot of dark silver ingots to craft a lot of things, especially weapons. However, it is a bit tricky to get hold of this material if you are unprepared.
The reason is that you need silver ores that you refine into dark silver bars.
The problem is that since you're a vampire, you're susceptible to silver. Basically, if you stay in the Holy Silver Mine for too long, your health will drop. This is why you want to drink a Silver Resistance Brew first before you start mining.