I'm kinda curious about what recent sets (say, since Alara block) have had the biggest impact on legacy?
They've all added something to legacy, but I'm having trouble making up my mind which has had the largest impact. Was it avacyn's miracles? Zendikars new fetches? Phyrexia's equipments? worldwakes jace and mystic?
What do you lot think?

Personally, I think Jace and stoneforge - both from worldwake - might have made the biggest impact.