There have been seven (7) seasons since 1981, that a left-handed pitcher had a year with more than 200 innings, 200 strikeouts, 20 wins and an ERA below 3.00. Randy Johnson achieved this 3 of the 7 times.
David Price of Tampa did it last year and Clayton Kershaw got it done in 2011.
Who are the other two?
HINT: One guy did it in the 80's and the other was last decade.