Board Thread:Plants vs. Zombies Heroes/@comment-5760976-20160705191208/@comment-28928205-20160711043718

How the hell I am supposed to beat level 20 for zombies (A Shadow Falls)?

Green Shadow has card advantage with +2 starting hand, insane board advantage with +1/+1 to every plant, and you can't outrace her because of +15 starting life. Even amphibious zombies don't work.

Anybody with tips or strategies for this boss? I'm stuck there for a week.