Flow — Riftbound Rules

Section 829 — 10 rules

829.1.: Flow is a passive ability keyword.
829.1.a.: Flow is present on Spells.
829.1.b.: It is functionally short for “You may play this from your trash for its flow cost. Then banish it.”
829.1.b.1.: Banishing the spell in this way is a delayed replacement effect. If the spell would leave the chain after becoming a finalized chain item, and leaving the chain wasn’t instructed by its own execution, banish it instead. See rule 367. Replacement Effects for more information. See rule 389. Delayed Abilities for more information.
829.1.b.2.: Playing a spell for its Flow cost does not change the timing at which it can be played, nor any permissions for the spell aside from the zone from which it can be played.
829.1.c.: Flow is formatted as “Flow [Cost]”
829.1.c.1.: The cost is an alternate cost that replaces the base cost of the spell to be paid during finalization.
829.1.c.2.: Flow costs may include both resource costs and non-resource costs.
829.1.c.3.: If a spell has multiple instances of the Flow keyword with different costs, its controller may choose which cost to apply as they play it.
829.2.: Flow, and whether or not a spell has Flow, is a characteristic of the Spell and may be checked or referenced by other Game Effects.