Fightiíng against Warlocks was, most of the time, very problematic because most of Warlocks were crafty foxes. Even the greenskin ones were cunning as hell and were dangerous opponents.
That was because Warlocks got their Magic from entering into a contract with some kind of extradimensional entity...
Most of the Entities that were dealing with Warlocks were various kinds of Eldirthc Horrors, Void Creatures, Outer Gods, monstrosities that existed since immemorial or other types of creatures.
And always...
Always the price was your very own soul and the only way how to not lose it was to remain alive.
So the Warlocks were experts at survival.
Samiel identified five Warlocks that were in the area; all of them were at the Silver-Tier, signifying their power. In a split of a second, as he located all of them, he rushed at the nearest ork Warlock.