Baldur's Gate 3

How to make this trophy on tactics.
Save Shadowheart.
In her spells, select command-drop. We cast it on Zhalka, he drops a super gun.
We select the cannon with the toad and hit Zhalk, healing the ilithid if necessary. At the same time, we cast 1-2 magic hands; their task will be to collect cans of purple liquid and place them around Zhalk.
ON moves 7-8, high-level demons will fly in - you can block their approach to the room with the help of chests (this can delay them or even block them, but most often they will fly over).
Then, at the end of the battle, when there are 20-30 health left, we simply explode the barrels of liquid remotely - everyone dies, they give you a lot of tasty experience. Simply and easily.

In the prologue, when there is a battle in which the task is to run to the control panel, an illithid and a demon will fight there, you need to kill the demon and the trophy will drop