When Mercury and Mars combine in a natal chart, this suggests a blending of one’s intellect with assertion and the application of will. This particular person is intent on using their mental capabilities to compete and win, and sometimes at all costs.
One of the reigning questions which this blend proposes is:
“what can I DO with this thought?”
Using this aspect successfully, one would take what they know and act on it. This is not necessarily what would be considered a ponderous combination as there can be abrupt speech which may even be labeled as rude by some, and an indicator of impatience.
However, there is a certain urgency to learn which may manifest as a request to “get on with it” or “get to the point”. Information or explanations that are “roundabout” in nature aren’t what they’re looking for.
When well developed, this can be the debate champ. Highly skilled in verbal dexterity with an instinctive sense of where to “hit” in order to drive their points home while commanding attention for their intellectual prowess.
In it’s maladaptive state , Mercury-Mars can manifest as someone who has the audacity to chronically interrupt others because they think what they have to say is so much more important. Or, an individual who uses words as a violent weapon to purposefully injure others.