http://japanesetest4you.com/jlpt-n4-grammar-list/ → http://japanesetest4you.com/flashcard/learn-jlpt-n4-grammar-てくれる-te-kureru/
Get the deck → Dropbox - X-Bunpro-Jtest4you.apkg - Simplify your life
Basically, it’s a strip-down of JLPT Grammar from Jtest4you, but I strip it down using an idea from Bunpro and my Memrise drilling attempt (Sorry I deleted the course, so there is no sample…)
By stripping down, I make it finishable… N5 - 28 cards, N4 - 86, N3 - 119, N2 - 195, N1 - 217; and there is always a corresponding explanation on http://japanesetest4you.com/jlpt-n***-grammar-list/