Luigi (SSB4)/Down throw
Luigi forces his opponent on the floor and Ground Pounds them. Depending on percentage, this throw can be followed up by up tilt, any smash attack, any aerial attack, Luigi Cyclone or Super Jump Punch. It serves as Luigi's starting move for some of his most powerful KO combos.
In earlier versions of the game, Luigi's down throw functioned identically to its Brawl counterpart, which made it an incredible combo tool. It could easily combo at any percent, leading into KO confirms which worked at an extremely wide percent range. Update 1.1.1 however noticeably increased the throw's knockback, greatly hindering its ability to lead into KO moves. Despite this, it still has incredible combo potential at low percents and it is overall still Luigi's most useful throw.
The speed of this throw depends on the opponent's weight.