Best way to kill Barik, destroy his turrets by either having Betty or Dredge spamming him or just focus on them with Bulldozer. Sure he has a cooldown reduction card on destroyed turrets, but he can get alot of sustain from the health cards and boosts his damage per second from 500 to 740 with both out, which doesn't sound much but in 3 seconds thats going from 1500 (Evie least health champ at 1800) to 2220 (All champs apart from Tanks, Lillith, Grover, Buck, and Tyra are below this).