A being or entity that possesses unlimited power and is able to do anything -

Omnipotent (adjective): 
English Meaning - having unlimited power and being able to do anything. 
Bangla Meaning - সর্বশক্তিমান: the Omnipotence, ঈশ্বর।

Other options, 
Altruist - A person who cares about others and helps them despite not gaining anything by doing this. 
Omnipresent - Present or having an effect everywhere at the same time. 
Omniscient - Having or seeming to have unlimited knowledge. 

Source: 
1. Cambridge Dictionary. 
2. Accessible Dictionary by Bangla Academy.