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Activated SleeperHow it works & interactions with other cards

By the ManaCount desk· 5 min read· Dominaria United Commander· September 9, 2022
Carte Magic Activated Sleeper

Activated Sleeper 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

Flash You may have this creature enter as a copy of any creature card in a graveyard that was put there from the battlefield this turn, except it's a Phyrexian in addition to its other types.

How it works : Activated Sleeper

Original English text — Wizards of the Coast / Scryfall

  1. #1· Wizards of the Coast

    Treat Activated Sleeper as though it were the chosen card entering the battlefield, except it's also a Phyrexian. Any "As [this creature] enters the battlefield," "[This creature] enters the battlefield with," and "When [this creature] enters the battlefield" abilities of the chosen card will work.

    No other card is named in this ruling.

  2. #2· Wizards of the Coast

    If the chosen creature card has {X} in its mana cost, X is considered to be zero.

    No other card is named in this ruling.

  3. #3· Wizards of the Coast

    You don't have to choose a card to copy. If you don't, Activated Sleeper enters the battlefield as a 0/0 creature and is probably put into your graveyard immediately, unless something is increasing its toughness to keep it alive.

    No other card is named in this ruling.

02

Popular combos

Real combos played by the community, sorted by popularity.

Activated Sleeper
+Karmic Guide
+Viscera Seer
#1

Activated Sleeper + Karmic Guide + Viscera Seer

Infinite death triggersInfinite creature ETBInfinite creature LTBInfinite creature sacrifice triggers
  1. 1Cast Activated Sleeper by paying {2}{B}, choosing to have it enter the battlefield as a copy of Karmic Guide.
  2. 2Activated Sleeper enters the battlefield, targeting Karmic Guide.
  3. 3Holding priority, activate Viscera Seer by sacrificing Activated Sleeper, causing you to scry 1.
  4. 4Resolve the Activated Sleeper trigger, returning Karmic Guide from your graveyard to the battlefield.
  5. 5Karmic Guide enters the battlefield, targeting Activated Sleeper.
  6. 6Holding priority, activate Viscera Seer by sacrificing Karmic Guide, causing you to scry 1.
  7. 7Resolve the Karmic Guide trigger, returning Activated Sleeper from your graveyard to the battlefield as a copy of Karmic Guide.
  8. 8Repeat from step 2.
Activated Sleeper
+Karmic Guide
+Carrion Feeder
#2

Activated Sleeper + Karmic Guide + Carrion Feeder

Infinite +1/+1 counters on a creatureInfinite death triggersInfinite creature ETBInfinite creature LTB
  1. 1Cast Activated Sleeper by paying {2}{B}, choosing to have it enter the battlefield as a copy of Karmic Guide.
  2. 2Activated Sleeper enters the battlefield, targeting Karmic Guide.
  3. 3Holding priority, activate Carrion Feeder by sacrificing Activated Sleeper, putting a +1/+1 counter on Carrion Feeder.
  4. 4Resolve the Activated Sleeper trigger, returning Karmic Guide from your graveyard to the battlefield.
  5. 5Karmic Guide enters the battlefield, targeting Activated Sleeper.
  6. 6Holding priority, activate Carrion Feeder by sacrificing Karmic Guide, putting a +1/+1 counter on Carrion Feeder.
  7. 7Resolve the Karmic Guide trigger, returning Activated Sleeper from your graveyard to the battlefield as a copy of Karmic Guide.
  8. 8Repeat from step 2.
Cavalier of Night
+Activated Sleeper
+Viscera Seer
#3

Cavalier of Night + Activated Sleeper + Viscera Seer

Infinite death triggersInfinite creature ETBInfinite creature LTBInfinite creature sacrifice triggers
  1. 1Activate Viscera Seer by sacrificing Cavalier of Night.
  2. 2When Cavalier of Night dies, it triggers, returning Activated Sleeper from your graveyard to the battlefield as a copy of Cavalier of Night.
  3. 3When Activated Sleeper enters the battlefield, it triggers; choose not to sacrifice a creature.
  4. 4Activate Viscera Seer by sacrificing Activated Sleeper.
  5. 5When Activated Sleeper dies, it triggers, returning Activated Sleeper from your graveyard to the battlefield as a copy of Cavalier of Night.
  6. 6When Activated Sleeper enters the battlefield, it triggers; choose not to sacrifice a creature.
  7. 7Resolve the Viscera Seer ability from step 4, causing you to scry 1.
  8. 8Repeat from step 4.
Reveillark
+Activated Sleeper
+Viscera Seer
#4

Reveillark + Activated Sleeper + Viscera Seer

Infinite death triggersInfinite creature ETBInfinite creature LTBInfinite creature sacrifice triggers
  1. 1Activate Viscera Seer by sacrificing Reveillark.
  2. 2When Reveillark dies, it triggers, returning Activated Sleeper from your graveyard to the battlefield as a copy of Reveillark.
  3. 3Activate Viscera Seer by sacrificing Activated Sleeper.
  4. 4When Activated Sleeper dies, it triggers, returning Activated Sleeper from your graveyard to the battlefield as a copy of Reveillark.
  5. 5Resolve the Viscera Seer ability, causing you to scry 1.
  6. 6Repeat from step 3.
Cavalier of Night
+Activated Sleeper
+Carrion Feeder
#5

Cavalier of Night + Activated Sleeper + Carrion Feeder

Infinite +1/+1 counters on a creatureInfinite death triggersInfinite creature ETBInfinite creature LTB
  1. 1Activate Carrion Feeder by sacrificing Cavalier of Night.
  2. 2When Cavalier of Night dies, it triggers, returning Activated Sleeper from your graveyard to the battlefield as a copy of Cavalier of Night.
  3. 3When Activated Sleeper enters the battlefield, it triggers; choose not to sacrifice a creature.
  4. 4Activate Carrion Feeder by sacrificing Activated Sleeper.
  5. 5When Activated Sleeper dies, it triggers, returning Activated Sleeper from your graveyard to the battlefield as a copy of Cavalier of Night.
  6. 6When Activated Sleeper enters the battlefield, it triggers; choose not to sacrifice a creature.
  7. 7Resolve the Carrion Feeder ability from step 4, putting a +1/+1 counter on it.
  8. 8Repeat from step 4.
Cavalier of Night
+Activated Sleeper
+Ashnod's Altar
#6

Cavalier of Night + Activated Sleeper + Ashnod's Altar

Infinite colorless manaInfinite death triggersInfinite creature ETBInfinite creature LTB
  1. 1Activate Ashnod's Altar by sacrificing Cavalier of Night, adding {C}{C}.
  2. 2When Cavalier of Night dies, it triggers, returning Activated Sleeper from your graveyard to the battlefield as a copy of Cavalier of Night.
  3. 3When Activated Sleeper enters the battlefield, it triggers; choose not to sacrifice a creature.
  4. 4Activate Ashnod's Altar by sacrificing Activated Sleeper, adding {C}{C}.
  5. 5When Activated Sleeper dies, it triggers, returning Activated Sleeper from your graveyard to the battlefield as a copy of Cavalier of Night.
  6. 6Repeat from step 3.
Reveillark
+Activated Sleeper
+Carrion Feeder
#7

Reveillark + Activated Sleeper + Carrion Feeder

Infinite +1/+1 counters on a creatureInfinite death triggersInfinite creature ETBInfinite creature LTB
  1. 1Activate Carrion Feeder by sacrificing Reveillark.
  2. 2When Reveillark dies, it triggers, returning Activated Sleeper from your graveyard to the battlefield as a copy of Reveillark.
  3. 3Activate Carrion Feeder by sacrificing Activated Sleeper.
  4. 4When Activated Sleeper dies, it triggers, returning Activated Sleeper from your graveyard to the battlefield as a copy of Reveillark.
  5. 5Resolve the Carrion Feeder ability, putting a +1/+1 counter on it.
  6. 6Repeat from step 3.
Cavalier of Night
+Activated Sleeper
+Phyrexian Altar
#8

Cavalier of Night + Activated Sleeper + Phyrexian Altar

Infinite colored manaInfinite death triggersInfinite creature ETBInfinite creature LTB
  1. 1Activate Phyrexian Altar by sacrificing Cavalier of Night, adding one mana of any color.
  2. 2When Cavalier of Night dies, it triggers, returning Activated Sleeper from your graveyard to the battlefield as a copy of Cavalier of Night.
  3. 3When Activated Sleeper enters the battlefield, it triggers; choose not to sacrifice a creature.
  4. 4Activate Phyrexian Altar by sacrificing Activated Sleeper, adding one mana of any color.
  5. 5When Activated Sleeper dies, it triggers, returning Activated Sleeper from your graveyard to the battlefield as a copy of Cavalier of Night.
  6. 6Repeat from step 3.
03

Legal formats

legacyvintagecommanderoathbreakerdueltlr
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