Magic used to define the Vampire Counts army in much the same way as it did the Tomb Kings. The primary difficulties an opponent faced was the prowess of the Vampire characters, and the fact that the generally modestly powerful units could regain lost models (or even grow beyond their starting size), spring up from nowhere, and charge in the magic phase.
Things have been shaken up a bit under the latest Vampire Counts book, including the loss of the ability to charge using Vanhel's Danse Macabre (continuing the trend we have seen across all new magic lores under 8th edition). The book has seen a number of new units added, many of which fight well enough that they don't necessarily need magical assistance to get the job done.
So then, the army has reduced its reliance on magic (assuming the player builds his army list correctly). What does this mean for the new Lore of Vampires? Let's take a look.