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Rules guide · Legendary Creature

Momo, Friendly FlierHow it works & interactions with other cards

By the ManaCount desk· 2 min read· Avatar: The Last Airbender· November 21, 2025
Carte Magic Momo, Friendly Flier

Momo, Friendly Flier 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.

01

Official card text

Flying The first non-Lemur creature spell with flying you cast during each of your turns costs {1} less to cast. Whenever another creature you control with flying enters, Momo gets +1/+1 until end of turn.

Complete guide

Momo, Friendly Flier is a delightful addition to any deck focusing on airborne creatures, providing both cost reduction and temporary buffs. As a Legendary Lemur Bat Ally, Momo excels at leading a flock of diverse flying friends into battle. This card serves as a powerful early-game engine for tempo-based strategies involving evasion.

Soaring Discounts

Momo's primary utility is its static ability that reduces the cost of the first non-Lemur creature spell with flying you cast each of your turns by {1}. This reduction applies specifically to the generic mana portion of the spell's cost. If you cast a creature that is not a Lemur and has the flying keyword, the discount is automatically applied during the step where you determine the total cost of the spell.

Step-by-Step Resolution

When you cast a qualifying creature spell, the cost reduction happens as part of the casting process before the spell is paid for. Once that creature successfully enters the battlefield, Momo's second ability triggers. This triggered ability goes on the stack and, when it resolves, Momo receives a +1/+1 bonus until the end of the turn. This sequence ensures Momo grows stronger as you deploy your aerial army.

Common Pitfalls

A common mistake involves the timing of the cost reduction. The ability only applies to the *first* qualifying spell you cast. If that first spell does not have generic mana in its cost (for example, a creature that costs only one white mana), the discount is wasted; it does not 'carry over' to the second spell you cast that turn. Additionally, remember that Momo only triggers when *another* creature enters, so its own entry does not grant itself a bonus.

When to Play Momo

Momo is best played on the first turn to maximize the mana advantage provided by the cost reduction. Because the +1/+1 buff is temporary and triggers off entries, it is most effective when you have a hand full of low-cost flyers to chain together, turning Momo into a significant threat during your combat phase.

Interaction examples

Taking Flight with Paradise

With Momo on the battlefield, you cast Ornithopter of Paradise. Since Ornithopter of Paradise has flying and is not a Lemur, it is the first qualifying spell. Its cost is reduced from {2} to {1}. When Ornithopter of Paradise enters the battlefield, Momo's triggered ability fires, giving Momo +1/+1 until end of turn.

Non-Flying Interaction

If you cast Esper Sentinel while Momo is on the battlefield, the cost reduction does not apply because Esper Sentinel does not have flying. Furthermore, when Esper Sentinel enters, Momo does not receive a +1/+1 bonus because the trigger specifically requires a creature with flying to enter the battlefield.

Guide written with AI from the official text and rulings. Official English text prevails.

How it works : Momo, Friendly Flier

Original English text — Wizards of the Coast / Scryfall

  1. #1· Wizards of the Coast

    Momo, Friendly Flier's second ability only reduces the generic mana cost of the spell. If first non-Lemur creature spell with flying you cast on your turn doesn't have generic mana in its cost, the cost will not be reduced and the cost reduction will not apply to the next spell you cast that turn.

    No other card is named in this ruling.

02

Legal formats

standardfuturehistorictimelessgladiatorpioneermodernlegacyvintagepennycommanderoathbreakerstandardbrawlbrawlcompetitivebrawlalchemydueltlr
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