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Rules guide · Creature

AeromoebaHow it works & interactions with other cards

By the ManaCount desk· 5 min read· Modern Horizons 2· June 18, 2021
Carte Magic Aeromoeba

Aeromoeba 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 Discard a card: Switch this creature's power and toughness until end of turn.

How it works : Aeromoeba

Original English text — Wizards of the Coast / Scryfall

  1. #1· Wizards of the Coast

    Effects that switch a creature's power and toughness apply after all other effects, regardless of when those effects began to apply. For instance, if you switch Aeromoeba's power and toughness and then give it +2/+0 later in the turn, it's a 4/4 creature, not a 6/2 creature.

    No other card is named in this ruling.

  2. #2· Wizards of the Coast

    Because damage remains marked on a creature until the cleanup step or an effect removes that damage, nonlethal damage dealt to a creature may become lethal if you switch its power and toughness during that turn.

    No other card is named in this ruling.

  3. #3· Wizards of the Coast

    Switching a creature's power and toughness twice (or any even number of times) effectively returns the creature to the power and toughness it had before any switches.

    No other card is named in this ruling.

02

Popular combos

Real combos played by the community, sorted by popularity.

Norman Osborn // Green Goblin
+Hullbreaker Horror
+Aeromoeba
#1

Norman Osborn // Green Goblin + Hullbreaker Horror + Aeromoeba

Infinite self-discard triggersInfinite storm count
  1. 1Activate Aeromoeba by discarding a nonland permanent card that costs {2} or less.
  2. 2Cast the permanent from your graveyard for its mayhem cost by paying {0} due to Green Goblin.
  3. 3Hullbreaker Horror trigger, returning another nonland permaennt that costs 2 or less from the battlefield to your hand.
  4. 4Resolve the spell from step 2.
  5. 5Repeat.
Triskaidekaphile
+Peer into the Abyss
+Aeromoeba
+Savor the Moment
#2

Triskaidekaphile + Peer into the Abyss + Aeromoeba + Savor the Moment

Win the game at the beginning of your next upkeep
  1. 1Cast Peer into the Abyss, drawing at least twelve cards and losing half your life total.
  2. 2Cast Savor the Moment, gaining an extra turn.
  3. 3Activate Aeromeba by discarding a card to switch Aeromeba's power and toughness until end of turn.
  4. 4Repeat step 3 until you have exactly thirteen cards in your hand.
  5. 5Pass to the extra turn.
  6. 6At the beginning of your upkeep, Triskaidekaphile triggers, winning the game.
Triskaidekaphile
+Peer into the Abyss
+Aeromoeba
+Magistrate's Scepter
#3

Triskaidekaphile + Peer into the Abyss + Aeromoeba + Magistrate's Scepter

Win the game at the beginning of your next upkeep
  1. 1Cast Peer into the Abyss, drawing at least twelve cards and losing half your life total.
  2. 2Activate Magistrate's Scepter by removing three charge counters from it and tapping it, gaining an extra turn.
  3. 3Activate Aeromeba by discarding a card to switch Aeromeba's power and toughness until end of turn.
  4. 4Repeat step 3 until you have exactly thirteen cards in your hand.
  5. 5Pass to the extra turn.
  6. 6At the beginning of your upkeep, Triskaidekaphile triggers, winning the game.
Vilis, Broker of Blood
+Feast of Sanity
+Aeromoeba
#4

Vilis, Broker of Blood + Feast of Sanity + Aeromoeba

Infinite draw triggersInfinite lootingInfinite self-discard triggersNear-infinite lifegain triggers
  1. 1Activate Aeromoeba by discarding a card.
  2. 2Feast of Sanity triggers, dealing 1 damage to you and causing you to gain 1 life.
  3. 3Vilis triggers, causing you to draw a card.
  4. 4Resolve the Aeromoeba ability, switching Aeromoeba's power and toughness until end of turn
  5. 5Repeat
Shilgengar, Sire of Famine
+Ovalchase Daredevil
+Skeleton Crew
+Aeromoeba
#5

Shilgengar, Sire of Famine + Ovalchase Daredevil + Skeleton Crew + Aeromoeba

Infinite artifact tokensInfinite creature LTBInfinite creature ETBInfinite creature sacrifice triggers
  1. 1Activate Aeromoeba by discarding Ovalchase Daredevil.
  2. 2Activate Shilgengar's first ability by sacrificing another creature, creating a Blood token.
  3. 3When the Blood enters the battlefield, Ovalchase Daredevil triggers, returning Ovalchase Daredevil from your graveyard to your hand.
  4. 4Skeleton Crew triggers, creating a 2/2 Skeleton Pirate creature token.
  5. 5Repeat.
Sage of Hours
+The Ten Rings
+Aeromoeba
+Iron Man, Armored Avenger
#6

Sage of Hours + The Ten Rings + Aeromoeba + Iron Man, Armored Avenger

LockNear-infinite turns
  1. 1If you have six or more cards in hand, activate Aeromoeba by discarding a card.
  2. 2Repeat step 1 until you have five or fewer cards in hand.
  3. 3At the beginning of your end step, The Ten Rings triggers, causing you to draw cards until you have ten cards in your hand.
  4. 4Iron Man triggers for each card drawn, putting that many +1/+1 counters on Sage of Hours.
  5. 5Activate Sage of Hours by removing all +1/+1 counters from it, causing you to take at least one extra turn after this one.
  6. 6Repeat each turn.
Shilgengar, Sire of Famine
+Ovalchase Daredevil
+Bone Miser
+Aeromoeba
#7

Shilgengar, Sire of Famine + Ovalchase Daredevil + Bone Miser + Aeromoeba

Infinite artifact tokensInfinite creature LTBInfinite creature ETBInfinite creature sacrifice triggers
  1. 1Activate Aeromoeba by discarding Ovalchase Daredevil.
  2. 2Bone Miser's first ability triggers, creating a 2/2 Zombie creature token.
  3. 3Resolve the Aeromoeba ability.
  4. 4Activate Shilgengar's first ability by sacrificing the Zombie, creating a Blood token.
  5. 5When the Blood enters the battlefield, Ovalchase Daredevil triggers, returning Ovalchase Daredevil from your graveyard to your hand.
  6. 6Repeat.
Osgir, the Reconstructor
+Karn, the Great Creator
+Ugin's Nexus
+Aeromoeba
#8

Osgir, the Reconstructor + Karn, the Great Creator + Ugin's Nexus + Aeromoeba

Infinite turnsLock
  1. 1Activate Osgir by paying {5}, tapping it and exiling Ugin's Nexus from your graveyard, creating four token copies of Ugin's Nexus.
  2. 2Put three of the Ugin's Nexus tokens into exile due to the legend rule and their replacement effects, causing you to take three extra turns after this one.
  3. 3Activate Karn's first loyalty ability by putting a loyalty counter on it, choosing to do nothing.
  4. 4Move to your next extra turn.
  5. 5Repeat from step 3 one additional time.
  6. 6Activate Karn's second loyalty ability by removing two loyalty counters from it, returning Ugin's Nexus from exile to your hand.
  7. 7Activate Aeromoeba by discarding Ugin's Nexus.
  8. 8Move to your last extra turn.
03

Legal formats

historictimelessgladiatormodernlegacypaupervintagepennycommanderoathbreakerbrawlcompetitivebrawlpaupercommanderduel
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