I thought about Village Messengers but found the other creatures to be more effective. Maybe I will test it for
Falkenrath Gorger.
I love
Impact Tremors but unfortunately it doesn't do anything on it's own and it makes the Thermo-Alchemists worse by cutting instants and/or sorceries.
I guess you could build it more creature heavy with Messengers instead of Thermo-Alchemists and 4
Impact Tremors for something else.
But thanks for your recommendations!