A yoga is formed by more than one planet. The nature of the planets if three types, i.e. benefic, malefic and neutral. According to natural classifications benefics are Jupiter, Venus, Well associated Mercury, and waxing Moon. Natural malefics are Sun Mars, evil associated Mercury and wanning Moon. Any planet that becomes The lord of 2nd and  12th is considered to be neutral. The benefics or benefic lords can be categorised as

1. Lord of Lagna or Ascendant
2. Lord of  5th house and 9th house
3. Lord of Kendras or quadrants ( 4th, 7th, 10th house)  when they are natural malefics.

It is not necessary that only natural benefics can be benefics. Even natural malefics can act as benefics in some or the other conditions. on the contrary, even natural benefics can act as malefic in specific conditions.

The Sun

He is benefic as Lord of 1, 4, 7, 10, 5 and 9 houses. This is possible in rising Ascendant as Leo, Taurus, Aquarius, Scorpio, Aries and Sagittarius.

The  Moon

He is benefic as lord of 1, 5 and 9 which is possible for Cancer, Pisces and Scorpio respectively.

Mars

Mars is natural malefic  benefic as lord of 1 and 8 in case of Aries, 2 and 7 in Libra, 2 and 9 in Pisces, 3 and 10 in Aquarius, 4 and 9 in Leo, 5 and 10 in Cancer, 5 and 12 in Sagittarius, 7 and 12 in Taurus.

Mercury

Mercury is natural benefic if not evil associated but by position it is benefic as lord of 2 and 5 in Taurus rising, 9 and 6 in case in Capricorn, 9 and 12 in case of Libra.

Jupiter

Jupiter is natural benefic but it can give benefic results in limited conditions i.e. as lord of 2 and 5 in Scorpio rising, 6 and 9 in case of Cancer rising, 9 and 12 in case of Aries as the rising Ascendant. Jupiter becomes malefic by position when is the lord of 2 and 11 in case of Aquarius, 3 and 6 in case of Libra rising, 3 and 12 in Capricorn rising, 4 and 7 in Virgo rising, 7 and 10 in Gemini rising, 8 and 11 in Taurus.

Venus

Venus is a natural benefic but is not a benefic in all places. It is benefic only in few conditions.  Venus is benefic as the lord of 1 and 8 in Libra rising, 2 and 9 in Virgo rising, 4 and 9 in case of Aquarius rising, 5 and 10 in Capricorn, 5 and 12 in Gemini. Venus becomes malefic as the lord of 2 and 7 in Aries rising, 3 and 8 in case of Pisces rising, 3 and 10 in Leo rising, 4 and 11 in Cancer rising, 6 and 11 in Sagittarius rising, 7 and 12 in Scorpio rising.

Saturn

Saturn is although a natural malefics but can ct as benefic in various situation. He is benefic as the lord of 1 and 2 in Capricorn, 1 and 12 in case of Aquarius rising, 4 and 5 in Libra rising, 9 and 10 in case of Taurus rising. We can see from above that the natural benefics are more malefics by position than  natural malefics. Thus, the malefics and benefics planets should not be confused with evil and good planets, according to natural classifications.