Back to Mystery Booster 2

Fludge, Gunk Guardian

{3}{B}{G}

Legendary Creature — Slug Ooze

MB2Mystery Booster 2#593rare
Border
black
Frame
2015
Pull rate
~1 in 120
Illustrator
Sara Leal
Found in
Mystery Booster 2 Booster Pack
Printings1
CommanderNot legalModernNot legalStandardNot legal
Format legality
AlchemyNot legal
BrawlNot legal
CommanderNot legal
Competitive BrawlNot legal
DuelNot legal
Future StandardNot legal
GladiatorNot legal
HistoricNot legal
LegacyNot legal
ModernNot legal
OathbreakerNot legal
Old SchoolNot legal
PauperNot legal
Pauper CommanderNot legal
PennyNot legal
PioneerNot legal
PreDHNot legal
PremodernNot legal
StandardNot legal
Standard BrawlNot legal
TimelessNot legal
Tiny LeadersNot legal
VintageNot legal
Whenever Fludge, Gunk Guardian or another Slug, Ooze, Fungus, or Mutant enters the battlefield under your control, each opponent shuffles three Gunk cards into their library. (Gunk is a colorless sorcery card with no mana cost that has cycling {4}.)
5/5
Market · per finishspark updated 11h ago · prices as of 2026-07-12
Nonfoil+0.0%
$0.24
$0.01 low-$0.02 gap
Cheapest playable copy$0.24· across 1 printing

Rulings

8 · latest Nov 8, 2024 · one tap opens all
  • WotCNov 8, 2024

    A Gunk card is a colorless Gunk sorcery named Gunk with cycling {4}. It has no mana cost, so you can’t normally cast it. It has no spell abilities, so if you do find a way to cast it, it won’t have any effect.

  • WotCNov 8, 2024

    A Gunk card’s owner is the player who first shuffled it into their library.

  • WotCNov 8, 2024

    Cycling {4} means “{4}, Discard this card: Draw a card.”

  • WotCNov 8, 2024

    For many playtest cards, you’ll need to make a generous assumption that basic game rules would be updated to allow them to work. The Mystery Booster 2 Playtest Card Notes section (reproduced here in individual Gatherer rulings) provides guidance for fitting these cards into the existing rules structure.

  • WotCNov 8, 2024

    Gunk cards are not tokens. Treat Gunk cards just as one would treat regular cards. They can move between zones just like any other card and continue to exist for the duration of the game. At the end of the game, players should make sure to remove all Gunk cards from their deck.

  • WotCNov 8, 2024

    Players can represent Gunk cards using objects from outside the game so long as the game state remains clear and understandable to all players. They might need to get creative. Since Gunk cards are shuffled into players’ libraries, those players should represent Gunk cards using objects that, while face down, are indistinguishable from other cards in their deck.

  • WotCNov 8, 2024

    Playtest cards aren’t legal for play in any tournament format other than Mystery Booster Limited formats. On the other hand, we expect they will spice up a wide variety of non-tournament games (as long as everyone’s on the same page about using them!).

  • WotCNov 8, 2024

    Playtest cards use a modified version of game symbols, such as {T} and {W}. These modified symbols should be treated as the standard symbols during play.