Dharma Wheel

I want to take a opinionated poll

What is better and more effective when removing negative karma, sadhana, or mantra? there are plenty of deities that can do this, but to me, sadhana seems more effective and more sincere..

how do others feel in there own practices?

I hate to ask this.. but i am grateful for the answers.. Ive googled everywhere, and does anybody know how to perform a Dzambalah puja? and what the steps are? I have no lama around me, and im too poor to travel, so i thought if i approach the deity myself what better way to realize this? the second...