When it really comes down to it - you can bulk or cut on any drug. Whether you gain weight or loose weight depends on your diet.
Tren is a very effective steroid for cutting and recomping (gaining muscle and loosing fat at the same time). For cutting, low test high tren is best.
A test/tren cycle needs 3 main support supplements:
1. An AI like aromasin to keep estrogen in the low-normal range
2. An anti-prolactin drug like cabergoline to keep prolactin in the low-normal range
3. Cardarine to increase fat loss, endurance and prevent tren related side effects like tren cough
Cardarine isn't talked about much as a support for a cycle with tren but it is fantastic for preventing tren related side effects. Tren is notorious for negatively impacting endurance and causing insulin resistance. Cardarine helps prevent that immensely.
This is how I would run a test/tren cycle for cutting:
Weeks 1 - 10
Testosterone e 200mg/week
Tren e 300-400mg/week
OR tren ace 100mg EOD
aromasin 10mg EOD
cabergoline 0.25mg EOD
cardarine 20mg/day
After the cycle run the perfect PCT protocol ->
http://www.evolutionary.org/the-perfect-post-cycle-therapy-pct/