The grabber Lucas 30... The only exception to grabber rules is Bowser who gets 20 frames while being the grabber. This was talked about before, if you read... It could have also been answered by a Simple test. Have someone grab and see if they can shield at the same time of the person breaking free.Can you find out how many frames a character has who has released from the grab?
AKA
Lucas grabs Marth, pummels, doesn't throw. When he releases Marth, how many frames until Lucas can start his first action?
All grabbers have 30 frame (BUT BOWSER) just like the person being grabbed(Err all but 3). This is why nobody has ground release combos on other characters (Except but Ness/Lucas) but Bowser.
Oh and if DK Reaches you after him being released with an attack that hits within the 10 frames(30-20=10), he can punish you for letting him get free... Kind of funny.
Just so you know it was answered in the post above yours... Last sentence.