lol I recommend Testosterone post cycle

NEVER come off! Once your cycle ends, go on replacement dosage testosterone! Something like 125-150 mg/w test enth will do
PCT is bullshit, coming off is a bad idea
Once you are on, you are on for life until you decide to not take anabolics anymore full stop. Cycling on and off will get you no real progress long term!

As for cycle assist, eeeehhhh nothing really for just test and deca! Just check your blood pressure, as long as blood pressure isn't per-hypertensive then you need nothing, otherwise you'd have to look into blood pressure drugs, I forgot what BBers use for that, I have it written down somewhere