Arbor Colossus
Creature — Giant
THSTheros#150rare
Foil
- Border
- black
- Frame
- 2003
- Pull rate
- about 1 per booster–1 in 1793
- Illustrator
- Jaime Jones
- Found in
- Theros MTGO Redemption Foil · Theros MTGO Redemption · 4 more
CommanderLegalModernLegalStandardNot legal
Format legality
AlchemyNot legal
BrawlNot legal
CommanderLegal
Competitive BrawlNot legal
DuelLegal
Future StandardNot legal
GladiatorNot legal
HistoricNot legal
LegacyLegal
ModernLegal
OathbreakerLegal
Old SchoolNot legal
PauperNot legal
Pauper CommanderNot legal
PennyLegal
PioneerLegal
PreDHNot legal
PremodernNot legal
StandardNot legal
Standard BrawlNot legal
TimelessNot legal
Tiny LeadersNot legal
VintageLegal
Reach



: Monstrosity 3. (If this creature isn't monstrous, put three +1/+1 counters on it and it becomes monstrous.)
When this creature becomes monstrous, destroy target creature with flying an opponent controls.
6/6Reach
Plays as: Counter Placer · Spot Removal
Market · per finishspark updated 16h ago · prices as of 2026-07-12
Nonfoil-11.1%
$0.16
$0.05 low$0.02 gap
Foil+0.0%
$0.50
$0.20 low$0.12 gap
Finish
Market
Δ 7D · Trend
Low
Buylist
Buy / Sell Gap
Nonfoil
$0.16as of 2026-07-12
-11.1%
H $0.23L $0.10since Feb 2024$0.05
$0.03
$0.02+40% · normal spread
VenuesHide venues
Low: tcgplayer
Buylist: cardkingdom
Foil
$0.50as of 2026-07-12
+0.0%
H $1.80L $0.23since Feb 2024$0.20
$0.08
$0.12+60% · normal spread
VenuesHide venues
Low: tcgplayer
Buylist: cardkingdom
Cheapest playable copy$0.16· across 2 printings
Rulings
3 · latest Sep 15, 2013 · one tap opens all
- WotCSep 15, 2013
An ability that triggers when a creature becomes monstrous won't trigger if that creature isn't on the battlefield when its monstrosity ability resolves.
- WotCSep 15, 2013
Monstrous isn't an ability that a creature has. It's just something true about that creature. If the creature stops being a creature or loses its abilities, it will continue to be monstrous.
- WotCSep 15, 2013
Once a creature becomes monstrous, it can't become monstrous again. If the creature is already monstrous when the monstrosity ability resolves, nothing happens.