Puissant [pyoo-uh-suhnt, pyoo-is-uhnt, pwis-uhnt] Powerful; mighty; potent.
1400–50; late ME < MF < VL *possent- (s. of *possēns), for L potent- (s. of potēns), prp. of posse to be able, have power
An aura of puissance seemed to envelope me as a pwned Allies during Arathi Basin weekend. It's amazing the difference my new Puissant Cape makes!