Tren is a horrible choice for a boxer...I'm guessing you've never ran it before? You'll be winded in the first 30seconds your conditioning will go to absolute shit. As far as sust why? Sust will make u hold water which will lead to weight gain, do u plan on fighting at a heavier weight class?
Do a low dose prop cycle, with moderate eq and add a oral like var into the mix...strength aggression is what you'll get from that stack.