I'm focusing on getting my Daemons going for 2020 so I'm once again reviewing summoning as an early path to that. Things have changed so I want to focus on that change in the Master of Possession. He's a decent support HQ, essentially a sorcerer with a bubble of extra perils for enemy powers which is nice but with the Incursion power he can not only summon more effectively with four dice he can do so without taking any mortal wounds. As an added bonus, having a Venomcrawler nearby gives him a +1 to the roll so not a bad bodyguard to have if you're so inclined.
Unfortunately his other powers can't support non-Legion Daemon units, but this is self explanatory enough and once I get a few more CSM Daemon units going (the Maulershrimp in particular will enjoy an improved invulnerable save and a friend in the Venomcrawler).
What are people's experiences with summoning? Does the Master of Possession's Incursion power increase in viability help enough? I'm thinking of summoning a blob of Daemonettes to cause mischief, but should I be aiming bigger/bolder? You don't want to be holding too many reinforcement points back either so it may be compromise is best. Perhaps I should look at some Seekers or Fiends instead, get something a bit more than some stabbing?
I figured now was the time to make something of summoning, such as it is as well as the new units (I'll be kitbashing a Master of Executions up too) All info welcome, including non-Slaanesh bits for those who may be thinking the same as me but with a different allegiance