Tren is extremely powerfull, it will shred you hard, but it will also cause a great deal of side-effects. The period AFTER the cycle is where the real troubles comes. Since this is your 2nd cycle, I would avoid adding a new compound and just stick to the two you already are on. Adding too many, too early will just be overkill and you need to learn how you react to each individual substance.
I would personally not advice you to add tren yet. Save that for your next cycle maybe.