Roll on this random letter generator. Then give yourself one non-OP power that starts with that letter.
https://randomwordgenerator.com/letter.php
By Non-OP I mean no
omni, absolute, almighty, transcendent, transcendence, meta, perfection, Arsenal, defiance, adaptation, negation, infinitum, path to victory, power/ability creation/destruction/replication/learning/absorption/transcendence/mastering/manipulation or similar or any growth/development/improvement/upgrading/augmenting/probability/possibility/consumption/assimilation abilities. No fiction travel or similar and no omnipotent/nigh-omnipotent types, variations, etc or other similar tier abilities