Tidy Threat is a simple threat monitor which is simple enough for a novice to understand, yet powerful enough for a Tank.
Simple explanation:
While in combat, the status bar grows upward indicating how "hot" the enemy thinks you are. Causing damage or casting heals will raise that level.
If you reach the mark on the thermometer, the enemy will turn and start hitting YOU. As you continue to attack, the bar can continue to rise into the RED area, indicating the amount of threat that you would need to lose in order to shed the attention of the bad guy.
If you're DPSing: Don't go into the RED!
If you're tanking: Stay in the RED!
More Complex Explanation:
The status bar shows your threat compared to the next-highest threat for the rest of your group. If you are the top threat holder, it will also show how much your threat exceeds the next highest. In other words, if you are tanking and the bar extends above the line, into the red, you've got solid aggro.
No mode changes are required for Tank vs DPS usage; The interface is universal. For additional data, players can enable the Detail Window, which will display real threat numbers.
Type '/ttt' into the chat window to bring up the configuration panel, or right-click the Tidy Threat frame.
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