OUTKILLS is a playable word

outkill Scrabble® Dictionary

verb
outkilled, outkilling, outkills
to surpass in killing
99 Playable Words can be made from "OUTKILLS"
   2-Letter Words (14 found)
   3-Letter Words (24 found)
   7-Letter Words (2 found)
   8-Letter Words (1 found)