>>43818218The specific team that was getting spammed contained Aegislash, which is immune to Rapid Spin, and Bisharp, which you do NOT want to Defog in front of.
Opponent hard switches into Bisharp on a Defog and it's now at +2 Atk. Opponent hard switches into Aegislash on a Rapid Spin and you've lost your momentum and didn't even clear the hazards like you wanted.
And in the Defog situation, even if the hazards are gone, Shuckle is still alive because it didn't get the chance to kill itself.