With Mamoswine's and Suicune's rise in popularity the last couple seasons, people were turning to the Grass Knot + Life Orb set to beat them in one Pokemon, while also being able to 1v1 Kangaskhan and Ferrothorn (Low Kick), Garchomp / Salamence / Landorus-T (Ice Beam), and (Mega) Gengar / Aegislash / Cresselia (Dark Pulse). It's just a fantastic utility mon that can be customised to fit on a lot of teams, and beats a lot of the top threats (10 out of the top 16).