If Trinamool chief Mamata Banerjee clearly overshadowed the Gandhis as the 'champion BJP slayer' of the year, keeping the Sonia-Rahul-Priyanka trio edgy, 2022 could show how this 'Mom-Bachchas controlled Congress' vs 'Didi's own Congress' will fan out through tactical tie-ups and impact the larger play involving the Congress and regional biggies on the anti-BJP turf.