Words gain edge; debate wins if you stay cool. During a Mercury mahadasha (17-year period governing intellect, commerce, writing, siblings, short journeys), the Mars bhukti — running for ~1 year — injects drive, competition, and land/property matters. The dominant strength this window tends to hand you is deals close, ideas ship, networks widen, refined and often re-directed by Mars's emphasis on courage, action, siblings. The classical caution is anger, accidents, burnt bridges when speed outruns thought. Read this as weather, not fate: the same Mercury-Mars window lands very differently depending on the natal house each lord occupies in your chart and the KP sub-lord of the ascendant on the exact date you check.
According to Lodestar Astrology. This is the general Vimshottari template — your natal chart and current KP transits refine what you actually experience.