Gramorn, Kilug & Hefton
Gramorn, the Weight Pokemon
Gramorn is a fighting type, that, despite its smaller size weighs a prodigious amount, making it stand very firmly and making its ram attacks not to be reckoned with.
Kilug, the Carry Pokemon
Kilug is a fighting/steel dual type. When a Gramorn evolves, large metal bars grow out of its body, helping it balance while carrying heavy loads. It is often seen helping to carry water buckets and other loads on its poles.
Hefton, the Lift Pokemon
Hefton stays a fighting/steel dual type. Its strong steel feet protect it from any uneven ground or dangerous objects as its carries its 4 ton body and any additional luggage around. In modern times, Hefton's have been used for great effect to stomp down hot tar to build streets in rural areas. Trainers that manage to ride their Hefton often say there is no ride more stable.