Hook
Long Haul
Mixmaster 
Scrapher
Merge toegether to form...
Devestator!
The 6 Constructicons Merge together to form the first and greatest Gestahlt Transformer apropriatly called Devestator. Many autobots were squished by this strong but not so bright robot, The only counter the Autobots could manage was the Ferocious (and equally dense) DinoBots (hope Grimlock didn't hear that!) and in the imortal words of Megatron: