Neymar's effect and Ney-curse:
1. a world prior to 2013:
-- Barca dominating La liga and Champions league all the time
-- Real playes like a crap both in La liga and a Champions league
-- Real were losers and chokers, often losing La liga in matches against weaker teams
2. Barca buying Neymar in a summer of 2013:
-- Barca starting to play weaker in La liga than before Neymar
-- Real turning into an unbeatable machine with steal-mental strength in La liga and Champions league, winning 3 CLs in Neymar's 4 years at Barca
-- during spring of 2016 and season 2016/17 with Zidane and Neymar, Real won 15 points more than Barca and Real scoring 10s of late winners, goals from corners and headers after crosses whenever they needed it in key moments
3. Neymar leaving Barca in a summer of 2017:
-- Barca already at +7 points after only 5 rounds, and Real losing their luck and magic in 90th minute
-- Real already played bad in 3 home matches, and hit numerous posts in the final 10 minutes (Kroos a few matches ago, Carvajal and Bale yesterday)
-- if Ney's curse is true, Real won't win a CL in upcoming years
Ney-magic and Ney-curse