Merrow Skyswimmer 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
Convoke (Your creatures can help cast this spell. Each creature you tap while casting this spell pays foror one mana of that creature's color.) Flying, vigilance When this creature enters, create a 1/1 white and blue Merfolk creature token.
Complete guide
Merrow Skyswimmer is a versatile Merfolk Soldier that brings its own reinforcement to the battlefield. Thanks to the convoke mechanic, your existing army can reduce its cost, ensuring this flying threat hits the board sooner than expected.
Understanding Convoke
Convoke allows you to tap creatures you control to pay for the spell's cost rather than spending mana. Each creature you tap pays for {1} or one mana of that creature's color. Since Merrow Skyswimmer costs {3}{W/U}{W/U}, you can tap up to five creatures to cast it for free. Importantly, you can tap creatures with summoning sickness for convoke, as it does not use the tap symbol in the cost.
Vigilance and Flying Presence
Once it resolves, Merrow Skyswimmer is a formidable blocker and attacker due to vigilance. It also triggers an enters-the-battlefield ability that creates a 1/1 white and blue Merfolk creature token. This ensures you maintain a board presence even if the Skyswimmer itself is dealt with later.
Common Mistakes with Mana Abilities
A common error involves trying to use a creature for a mana ability and convoke simultaneously. If you sacrifice a creature or tap it to activate a mana ability (like a Llanowar Elves), that creature is either gone or already tapped by the time you pay the convoke cost. You must choose one or the other.
When to Cast
Because it has vigilance, Merrow Skyswimmer is excellent in mid-range decks that need to apply pressure while remaining defensive. Using small tokens to convoke it out early allows you to bypass the five-mana requirement and start generating a lead through its additional Merfolk token.
Interaction examples
Roaming ThroneIf you have Roaming Throne on the battlefield with 'Merfolk' chosen as the type, Merrow Skyswimmer's enters-the-battlefield ability triggers an additional time. Instead of one 1/1 Merfolk token, you will create two, giving you even more creatures for future convoke spells.
MerfolkWhen Merrow Skyswimmer enters, it creates a 1/1 Merfolk token. On your next turn, you can use that new Merfolk token, along with the Skyswimmer itself (since it has vigilance and stays untapped after attacking), to convoke another spell. This creates a snow-balling effect of board presence.
Solemn SimulacrumSuppose you have Solemn Simulacrum on the field. Even though it is a colorless artifact creature, you can still tap it for convoke. In this case, the Simulacrum pays for {1} of the {3} generic mana in Merrow Skyswimmer's cost, helping you conserve your lands for other spells.
Guide written with AI from the official text and rulings. Official English text prevails.
How it works : Merrow Skyswimmer
Original English text — Wizards of the Coast / Scryfall
- #1· Wizards of the Coast
When calculating a spell's total cost, include any alternative costs, additional costs, or anything else that increases or reduces the cost to cast the spell. Convoke applies after the total cost is calculated. Convoke doesn't change a spell's mana cost or mana value.
No other card is named in this ruling.
- #2· Wizards of the Coast
If a creature you control has a mana ability with
in the cost, activating that ability while casting a spell with convoke will result in the creature being tapped before you pay the spell's costs. You won't be able to tap it again for convoke. Similarly, if you sacrifice a creature to activate a mana ability while casting a spell with convoke, that creature won't be on the battlefield when you pay the spell's costs, so you won't be able to tap it for convoke.No other card is named in this ruling.
- #3· Wizards of the Coast
Tapping an untapped creature that's attacking or blocking to convoke a spell won't cause that creature to stop attacking or blocking.
No other card is named in this ruling.
- #4· Wizards of the Coast
You can tap any untapped creature you control to convoke a spell, even one you haven't controlled continuously since the beginning of your most recent turn.
No other card is named in this ruling.
Popular combos
Real combos played by the community, sorted by popularity.
Nim Deathmantle + Ashnod's Altar + Merrow Skyswimmer
- 1Activate Ashnod's Altar by sacrificing Merrow Skyswimmer, adding
. - 2When Merrow Skyswimmer dies, Nim Deathmantle triggers, causing you to pay
to return Merrow Skyswimmer from your graveyard to the battlefield and attach Nim Deathmantle to it. - 3When Merrow Skyswimmer enters, it triggers, creating a creature token.
- 4Activate Ashnod's Altar by sacrificing a creature token, adding .
- 5Repeat.
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Meta decks with Merrow Skyswimmer
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