A Good Thing
Enchantment
CMB2Mystery Booster Playtest Cards 2021#86rare
- Border
- black
- Frame
- 2015
- Pull rate
- ~1 in 121
- Illustrator
- Yoni Skolnik
- Found in
- Mystery Booster Booster Pack (Convention Edition - 2021)
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
Spells and abilities you control can't destroy, exile, target, or cause you to sacrifice A Good Thing.
At the beginning of your upkeep, double your life total. Then, if you have 1,000 or more life, you lose the game.
Plays as: Life Doubler
Market · per finishspark updated 9h ago · prices as of 2026-07-12
Nonfoil+6.1%
$0.35
$0.10 low$0.01 gap
Finish
Market
Δ 7D · Trend
Low
Buylist
Buy / Sell Gap
Nonfoil
$0.35as of 2026-07-12
+6.1%
H $0.35L $0.19since Feb 2024$0.10
$0.09
$0.01+10% · normal spread
VenuesHide venues
Low: tcgplayer
Buylist: cardkingdom
Cheapest playable copy$0.35· across 2 printings
Rulings
1 · latest Nov 12, 2019 · one tap opens all
- WotCNov 12, 2019
To double a player’s life total, that player gains as much life as needed so that their life total is twice the number it was before. If their life total was negative, that player loses as much life as needed so that their life total is twice as far below 0 as it was before. Other effects interact with this life gain or loss accordingly.