"With a mixture of the "Stealth-Chargeup" trick and the Conqueror's charge-up attack, you can make a negative explosion whenever you like.

1. Hold the "Ctrl" button right after holding your left mouse button(you can release the left mouse button afterward).
2. While moving around, wait about 3.5 seconds for your charge-up to fill up(the Conqueror has a longer charge-up preparation)
3. As you release your "Ctrl" button to start the charge-up attack, DO NOT MOVE(moving will change your attack).
4. Clicking your mouse will make the charge-up attack start faster.

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There should be a "X" mark under your cursor when you are doing this."