Ritual summon is conducted to summon ritual monsters.
Monster card used as tribute and ritual spell cards are required to play ritual summon.
Ritual monsters are placed in the main deck as same to normal/effect monster cards.
Ritual monster cards should be in the hand when it is summoned. That means players have to collect required tribute, ritual spells, and ritual monsters.
Basically, ritual monsters requires specific ritual spells. However, it does not require specific tribute unlike the case of fusion material.
1. Collecting a ritual monster/spell
To summon a ritual monster, players have to collect a ritual monster and a ritual spell matching with the monster. Additionally, players need to have monsters as tribute in the hand or on the field.
For example, Black Luster Soldier is summoned by Black Luster Ritual.
2. Collecting tribute
Players have to have monster cards as tribute in their hand or on the field to conduct ritual summon.
For example, Black Luster Ritual requires players to tribute monsters from their hand or field and the total levels of those monster cards have to be 8 or more.
3. Sending tribute-monster cards to the grave yard
Once activating the ritual spell get successes, players have to send monsters as tribute from their hand or the field to the graveyard.
4. Summoning a ritual monster
Then, players can summon a ritual monster from their hand.
There are some exceptions along ritual summons. Here are two examples of those exceptions.
Advanced Ritual Art
By using Advanced Ritual Act, players can summon ritual monsters without specific ritual spells. Additionally, players need to send normal monsters from the deck to the graveyard and the total of those monster's level have to be equal to that of ritual monster.
Gishki Photomirror is used to ritual summon "Gishki" ritual monster. Players have to pay life poinsts equal to the level of the ritual monster x 5000 instead of tributing monster cards.