The Cross of Amazing Grace (most indulgenced medal ever)

Pardon Crucifix

These indulgences have been declared upon the Pardon Crucifix by Pope St. Pius X in 1905, and have been approved in the pardon of the living and the souls in Purgatory in 1907 (no longer mentioned in the new enchiridion).

1. Whoever carries on his person the Pardon Crucifix, may thereby gain an indulgence.
2. For devoutly kissing the Crucifix, an indulgence is gained.
3. Whoever says one of the following invocations before this crucifix may gain each time an indulgence: “Our Father who art in heaven, forgive us our trespasses as we forgive those who trespass against us.” “I beg the Blessed Virgin Mary to pray to the Lord our God for me.”
4. Whoever, habitually devout to this Crucifix, will fulfill the necessary conditions of Confession and Holy Communion, may gain a Plenary Indulgence on the following feasts: On the feasts of the Five Wounds of our Lord, the Invention of the Holy Cross, the Exaltation of the Holy Cross, the Immaculate Conception, and the Seven Sorrows (Dolors) of the Blessed Virgin Mary.
5. Whoever, at the moment of death, fortified with the Sacraments of the Church, or contrite of heart, in the supposition of being unable to receive them, will kiss this Crucifix and ask pardon of God for his sins, and pardon his neighbor, will gain a Plenary Indulgence.

Scapular Medal (Brown Scapular)
“Whoever dies invested with this Scapular shall be preserved from the eternal flames. It is a sign of salvation, a sure safeguard in danger, a pledge of peace and of my special protection until the end of the ages.” 

Holy Face Medal
Mary said the medal is a weapon for defense, a shield for courage, and a token of love and mercy...Whoever wears this medal and, if possible, pays a weekly visit to the Blessed Sacrament on Tuesday in a spirit of reparation for the outrages received by the Holy Face of our Blessed Savior during His passion and those bestowed on Him every day in the Sacrament of His Divine Love, will be granted the gift of a strong faith and the grace to fly to its defense, conquering, if need be, all interior and exterior difficulties. They are promised a happy death with special assistance from Jesus.

Miraculous Medal
Mary said, "All who wear it will receive great graces; they should wear it around the neck. Graces will abound for persons who wear it with confidence."

St. Benedict Medal (get blessed in the Old Rite)
*This is the only medal that contains an exorcism blessing.

*By a decree of the Sacred Congregation of Rites (6 March 1959), the Blessing of St. Maur over the sick is permitted to be given with a Medal of St. Benedict instead of with a relic of the True Cross, since the latter is difficult to obtain.

*According to Dom Gueranger, the medal is considered effective in:

1. asking for inner peace/spiritual healing;
2. asking peace between individuals or between nations of the world;
3. curing bodily afflictions especially as protection against contagious diseases;
4. destroying the effects of witchcraft and all other diabolical and haunting influences;
5. healing those who are suffering from wounds or illness;
6. obtaining the conversion of sinners, especially when they are in danger of death;
7. offering protection against storms and lightning;
8. protecting children from nightmares;
9. protecting a mother and her children during childbirth;
10. protecting animals infected with plague or other maladies;
11. protecting fields infested by harmful insects;
12. protecting or otherwise counter the effects of poison;
13. protecting those persons who are tempted, deluded or tormented by evil spirits.

*A plenary indulgence is granted, under the usual conditions, to one who, at the hour of his death, kisses, touches, or otherwise reverences the Crucifix/St. Benedict Medal combination and commends his soul to God's care and protection.