Would you use strenght or intelligence modifier with a spell like Green-Flame Blade?

@JeremyECrawford would you use your str mod or int mod with a spell like greenflame blade?

— Keith Martin (@kam2112) December 2, 2015

For green-flame blade / booming blade melee attacks, use whatever ability mod. you normally use for the weapon. #DnD https://t.co/jEnla3qkgy

— Jeremy Crawford (@JeremyECrawford) December 2, 2015

@vikke064 @kam2112Am I right that shillelagh (e.g. from pact of tome) would still apply when used with those other cantrips? That's correct.

— Jeremy Crawford (@JeremyECrawford) December 4, 2015