A Pact Summon is a kind of Special Summon that summons a Pact Monster .To do it,you'll need a Spell/Trap card whose effect lists a Pact Summon,and target 2 or more Pact Materials(Monsters used to do a Pact Summon)on the field that are listed to summon one Pact Monster.Then,Pact Summon the monster and the Pact Materials stay on the field.
Notes:
- Pact Monsters are put in the Extra Deck ,not in the Main Deck
- If one or more Pact Materials leave the field,send to the Graveyard the Pact Monster that were Summoned using that materials.
- If a Pact Monster leaves the field,banish one of the Pact Materials used to summon it,except if the Pact Monster was sent to the graveyard because one or more Pact Materials has left the field or if the Pact Monster was sent to the Extra Deck
- Pact Monsters can only be Special Summoned by a Pact Summon,except if the contrary is listed in the Pact Monster's effect