Your question is Jira Bug Automation Rule. Take a moment with it on the right.
Talk me through your thinking if you like. When you're confident, submit your answer and I'll grade it like a real screen (7/10 or better passes).
Write a simple Jira automation rule: QA team wants every new Bug in project 'ABC' to automatically get the label 'QA' and be assigned to the team lead. If the Bug’s priority is marked as 'High', a Slack message or email should be sent. Describe the automation rule you would create: trigger, conditions, and actions.