Cavern Whisperer
Creature — Nightmare
IKOIkoria: Lair of Behemoths#287common
ShowcaseFoil
- Border
- black
- Frame
- 2015
- Pull rate
- ~1 in 6–1890
- Illustrator
- Steve Ellis
- Found in
- Ikoria Lair of Behemoths Collector Booster Pack · Ikoria Lair of Behemoths Collector Booster Hanger Pack · Ikoria Lair of Behemoths Draft Booster Pack
CommanderLegalModernLegalStandardNot legal
Format legality
AlchemyNot legal
BrawlLegal
CommanderLegal
Competitive BrawlLegal
DuelLegal
Future StandardNot legal
GladiatorLegal
HistoricLegal
LegacyLegal
ModernLegal
OathbreakerLegal
Old SchoolNot legal
PauperLegal
Pauper CommanderLegal
PennyLegal
PioneerLegal
PreDHNot legal
PremodernNot legal
StandardNot legal
Standard BrawlNot legal
TimelessLegal
Tiny LeadersNot legal
VintageLegal
Mutate 
(If you cast this spell for its mutate cost, put it over or under target non-Human creature you own. They mutate into the creature on top plus all abilities from under it.)
Menace (This creature can't be blocked except by two or more creatures.)
Whenever this creature mutates, each opponent discards a card.
4/4 (If you cast this spell for its mutate cost, put it over or under target non-Human creature you own. They mutate into the creature on top plus all abilities from under it.)
Menace (This creature can't be blocked except by two or more creatures.)
Whenever this creature mutates, each opponent discards a card.MutateMenace
Plays as: Opponent Discard
Market · per finishspark updated 2h ago · prices as of 2026-07-12
Nonfoil+6.7%
$0.16
$0.01 low$0.00 gap
Foil-2.6%
$0.38
$0.10 low$0.02 gap
Finish
Market
Δ 7D · Trend
Low
Buylist
Buy / Sell Gap
Nonfoil
$0.16as of 2026-07-12
+6.7%
H $0.20L $0.04since Feb 2024$0.01
$0.01
$0.000% · normal spread
VenuesHide venues
Low: tcgplayer
Buylist: cardkingdom
Foil
$0.38as of 2026-07-12
-2.6%
H $0.39L $0.11since Feb 2024$0.10
$0.08
$0.02+20% · normal spread
VenuesHide venues
Low: tcgplayer
Buylist: cardkingdom
Cheapest playable copy$0.16· across 3 printings
Rulings
1 · latest Apr 17, 2020 · one tap opens all
- WotCApr 17, 2020
As the triggered ability resolves, first the next opponent in turn order (or, if it’s an opponent’s turn, the opponent whose turn it is) chooses a card in hand without revealing it, then each other opponent in turn order does the same. Then all the chosen cards are discarded at the same time.