Planet is the lord of the sign it occupies (e.g., Mars in Aries/Scorpio)
Planet is in its exaltation sign (e.g., Sun in Aries, Moon in Taurus)
Planet is in its own Nakshatra (star lord = planet itself)
Only 1 planet has directional strength (8 sub-rules checked)
Fallback: Ra > Ke > Su > Mo > Ve > Ju > Sa > Ma > Me
Debilitated planets are skipped in favor of non-debilitated alternatives