Stormcaller's Boon is one of those cards players keep asking about. Here is, in plain words, what its official text says, the rulings published by Wizards of the Coast, and the combos players actually run.
Official card text
Sacrifice this enchantment: Creatures you control gain flying until end of turn. Cascade (When you cast this spell, exile cards from the top of your library until you exile a nonland card that costs less. You may cast it without paying its mana cost. Put the exiled cards on the bottom in a random order.)
Complete guide
Stormcaller's Boon is a versatile enchantment that brings immediate board presence and tactical evasion to the battlefield. By combining the powerful Cascade mechanic with a team-wide flight ability, it serves as both a value engine and a potential finisher.
Unpacking Cascade
When you cast Stormcaller's Boon, the Cascade ability triggers immediately and is put on the stack above the enchantment itself. You exile cards from the top of your library face up until you find a nonland card with a mana value less than 4. You may then cast that card without paying its mana cost. Because this happens during the casting process, the Cascaded spell will resolve before Stormcaller's Boon even enters the battlefield.
Granting Evasion
Once Stormcaller's Boon is on the battlefield, it provides a powerful activated ability. You can sacrifice the enchantment at any time you have priority to grant all creatures you currently control flying until the end of the turn. This is an excellent tool for bypassing blockers during your combat phase or protecting yourself against specific threats.
Common Mistakes
A common misconception involves the mana value of the Cascaded spell. Due to rules updates, the spell you cast must have a mana value less than Stormcaller's Boon (which is 4). If you exile a card that allows you to choose between different spells, like a split card, the resulting spell must also meet the mana value requirement. Additionally, remember that if the spell you Cascade into has {X} in its cost, X must be 0.
When to Play It
Play Stormcaller's Boon when you need to dig for a specific low-cost utility piece while establishing a way to push damage through. Even if your opponent counters Stormcaller's Boon, the Cascade trigger still resolves, meaning you still get your free spell. The sacrifice ability is best saved for an 'alpha strike' to end the game.
Interaction examples
Rhystic StudyYou cast Stormcaller's Boon. The Cascade ability triggers and you exile cards until you hit Rhystic Study. Since Rhystic Study has a mana value of 3 (which is less than 4), you cast it for free. Rhystic Study resolves first, followed by Stormcaller's Boon.
Smothering TitheWhen you cast Stormcaller's Boon, you Cascade into Smothering Tithe. Because Smothering Tithe costs 4 mana, it does not have a 'lesser mana value' than Stormcaller's Boon. You must continue exiling cards until you find a nonland card with a mana value of 3 or less.
If Rhystic Study is already on the battlefield and you cast Stormcaller's Boon, your opponent's Rhystic Study will trigger twice: once for the casting of the Boon and once for the spell you cast via the Cascade ability. You will need to pay for both or let your opponent draw two cards.
Guide written with AI from the official text and rulings. Official English text prevails.
How it works : Stormcaller's Boon
Original English text — Wizards of the Coast / Scryfall
- #1· Wizards of the Coast
A spell's mana value is determined only by its mana cost. Ignore any alternative costs, additional costs, cost increases, or cost reductions.
No other card is named in this ruling.
- #2· Wizards of the Coast
Cascade triggers when you cast the spell, meaning that it resolves before that spell. If you end up casting the exiled card, it will go on the stack above the spell with cascade.
No other card is named in this ruling.
- #3· Wizards of the Coast
When the cascade ability resolves, you must exile cards. The only optional part of the ability is whether or not you cast the last card exiled.
No other card is named in this ruling.
- #4· Wizards of the Coast
If a spell with cascade is countered, the cascade ability will still resolve normally.
No other card is named in this ruling.
- #5· Wizards of the Coast
You exile the cards face up. All players will be able to see them.
No other card is named in this ruling.
- #6· Wizards of the Coast
If you cast a card "without paying its mana cost," you can't choose to cast it for any alternative costs. You can, however, pay additional costs. If the card has any mandatory additional costs, you must pay those to cast the card.
No other card is named in this ruling.
- #7· Wizards of the Coast
If the card has
in its mana cost, you must choose 0 as the value of X when casting it without paying its mana cost.No other card is named in this ruling.
- #8· Wizards of the Coast
Due to a 2021 rules change to cascade, not only do you stop exiling cards if you exile a nonland card with lesser mana value than the spell with cascade, but the resulting spell you cast must also have lesser mana value. Previously, in cases where a card's mana value differed from the resulting spell, such as with some modal double-faced cards or cards with an Adventure, you could cast a spell with a higher mana value than the exiled card.
No other card is named in this ruling.
- #9· Wizards of the Coast
The mana value of a split card is determined by the combined mana cost of its two halves. If cascade allows you to cast a split card, you may cast either half but not both halves.
No other card is named in this ruling.
Legal formats
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Meta decks with Stormcaller's Boon
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