Arjuna cannot be effected by paradoxes

The parts you're most concerned about here are the capacity to enforce the Self and face zero backlash from messing about with time, so you don't need to mess with that strange and potent substance for these experiments. You honestly have to stretch your mind a great deal to figure out how it all works out...but in the end, you manage it. Somewhat. Kinda. (Massively reduced fatigue costs and usage limits on all temporal abilities! You have nothing to fear from paradoxes! Going back in time and seducing your mother before she meets your dad is now entirely possible without erasing yourself from existence-even if it's still not condoned in the slightest!)