Yeah, any type of ability will not be activated or completely ignored.
Before, Mold Breaker, Teravolt, and Terablaze are allowed due to Tynamo, Eelektrik, and Eelektross Levitate ability. After today, there is a update on the game rules regarding usage of Pokemon abilities. All Pokemon abilities will be banned and activation to those Pokemon abilities will be completely ignored. Now you guys don't have to worry about Eelektross Levitate ability anymore!
Steelix used Iron Tail!