Yesterday, when I checked the Necromancer was in the #1 position on the 9 of the top 10 players Defensive Waves, and #2 on the other.
Flare has failed to balance this Troop. Balancing means to make things kind of equal-ish. Meaning all Troops would have an approximately equal likelihood of being in the #1 position. So we know for a simple unarguable fact that Flare failed to balance this Troop because it is not equal.
So my suggestion…
Monks are cool, and I don’t see a lot of Monks! Monks and Necromancers historically have never played well together.
Make the Monk’s Heal Spell actually do damage to Skeletons. The area effect damage would be pretty significant against Skeletons. And it’s a common practice to have a Heal Spell kill the undead.