the one thing no one has mentioned about tren so far in this thread...
regardless of whether it directly burns fat or not it is THE GOLD STANDARD for cutting and fat burning as far as AAS go.
1. It allows you to consume far less calories than normal but still helps maintain lean body mass (muscle tissue, etc.)
2. slightly raises your body temp, increasing metabolism through the thermogenic process of action
Fina is given to cattle so farmers can save money on feed. The cows will eat less feed but still maintain their size and the meat will be lean. The same idea applies to tren use in humans. Tren is ideal for a calorie deficit environment, but not necessary. You can use it to help stay a tad bit leaner while bulking.
But again, the keyword here overall is "calories"...