1) Achieved expertise in 2) Became a pro at 3) Became adept in 4) Became an expert in 5) Became great at 6) Became proficient in 7) Became skilled in 8) Down 9) Down pat 10) Got down cold 11) Got really good at 12) Learned fully 13) Learned thoroughly 14) Like some albums and skills 15) Perfect 16) Perfected 1) Conquered 2) Overcame 3) Perfect 4) Tamed 
• (imp. & p. p.) of Master