Rules glossary
↑ Parent rule: 704.5 The state-based actions are as follows:
704.5s If the number of lore counters on a Saga permanent with one or more chapter abilities is greater than or equal to its final chapter number and it isn’t the source of a chapter ability that has triggered but not yet left the stack, that Saga’s controller sacrifices it. See rule 714, “Saga Cards.”
No sub-rules.