I played a druid who played line cracker who then proceeded to use the bee summoning card on it. When each bee died this counted as an overkill doubling the Line crackers attack each time. This is different to how overkill usually works as you usually have to attack with the minion that has overkill to get the overkill bonus therefore i think this is a bug
Customer support doesn’t handle bug reports. If you believe you’ve found a bug, you can see how to report a bug in our games here.
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