Not in Wi-fi battles.
>Building, plain terrain, Sky Battles, and link battles: Causes paralysis
As to whether any move has a 30% of freezing, sorry, no. The maximum is 10%
Check out all the moves that cause freezing here.
Secret Power inflicts damage and has a 30% chance of causing a secondary effect. The effect and animation are determined by environment. The effect and animation caused by each environment changes between games, as does the environments recognized. Secret Power's secondary effect chance is not doubled by Serene Grace.
So, there is a legit way of a move causing Freezing, 30% of the time, in-game. Not during Link battles, so sorry about that.