Historical Rules · 3 February 2023
Rule 505.4
Official source text from the 3 February 2023 Rules release
Second, if the active player controls one or more Saga enchantments and it’s the active player’s precombat main phase, the active player puts a lore counter on each Saga they control. (See rule 715, “Saga Cards.”) This turn-based action doesn’t use the stack.