I have a good handle on 4e monster creation, but there is one particular role missing for me that the current monsters don't satisfy, and I need assistance making sure it works well.
I want a monster role for a ranged standard monster with higher damage, as the brutes have, but I want it to be balanced, such as by having lower defense or HP — a glass cannon. I want it to be a monster that would be easy to kill, but which would become a great problem because of its damage if it went ignored throughout the combat.
How can I create a balanced monster role for creating monsters that fill the place of a glass cannon?