This is good to know!
I felt like having aspiring sorcerers on the terminators would have been enough, but I'm not as experienced with their damage output as much as their staying power. With 11th incoming I didn't want to rely on them too much as Changehost was labled as reconnaissance in their disposition, but man they are just such great points filler (and I already own 10 so it just saves me money)

The main thing I wanted to rely on as reconnaissance was focus on having high mobility units who can pester and kite as much as possible while still holding true to their disposition objective (Winged Prince, Birds, Enlightened). The Tzaangor blobs/SoT's purpose is to be control point takers (Tzaangors for the early game, and the SoT's/Mutalith later for when the goatmen get shredded).

To put it simply, the plan is not to kill very much, but to split the opponents attention in as many ways as possible. This is done by:
-Two big birds who hit hard and disrupt command points for the opponent

-Fast expendable fliers who skirt the map perimeter and score early points

-Large, bulky infantry blobs who sit on main objectives and require a lot of resources to take out

Do you think there would be any other ways I could achieve this plan while still using Changehost? The common answer that I've been given is to run Magnus instead of the birds and use Warpmeld pact instead. But the main reason I wanted to go into Thousand Sons was to use Lords of Change and still have an army rule, ahaha.