Am stuck at wave 75 how to defeat those spider demons that come in swarms

Tai

Help.. It's really frustrating .have exhausted all my charms & sushi & tea & still can't get past level 75. Those spider demons in troops keep coming at you & it's hard to kill them. Am saving my gems for revive but in this level I can't get past 36 % which is very frustrating because all previous levels were easy for me except for this.

disbjt

i used frosty the bow man with assains and bowman with rifleman upgrade. never had to use tea or sushi