In a vacuum . LS is clearly better . If the effects and cost size are equal , then a zombie trick is almost always better since it gets in last . Likewise , you can hide zombies in a gravestone . or use zombies that are tricks . or use teleporter to get around squash . Finally , as already said , LS is a pet trick which has extra synergy in pet decks . However , zombies have a phenomenal mass removal tool in weed spray . They also have toxic . and the best bounce in the game with pogo zombie . and the Smash has Slammin ' Smackdown so I find LS somewhat uncommon outside of pet decks and even then I don ' t think they ' ll typically run more than 23 . So ironically Squash probably gets more play in higher leagues than LS .