Description
LEGAL
Standard
LEGAL
Future
LEGAL
Historic
LEGAL
Timeless
LEGAL
Gladiator
LEGAL
Pioneer
LEGAL
Explorer
LEGAL
Modern
LEGAL
Legacy
NOT LEGAL
Pauper
LEGAL
Vintage
LEGAL
Penny
LEGAL
Commander
LEGAL
Oathbreaker
LEGAL
Standardbrawl
LEGAL
Brawl
NOT LEGAL
Alchemy
NOT LEGAL
Pauper Commander
LEGAL
Duel
NOT LEGAL
Oldschool
NOT LEGAL
Premodern
NOT LEGAL
Predh
Karn's power and toughness are each equal to the greatest mana value among artifacts you control.
At the beginning of your upkeep, add
for each artifact you control. This mana can't be spent to cast nonartifact spells. Until end of turn, you don't lose this mana as steps and phases end.
At the beginning of your upkeep, add
for each artifact you control. This mana can't be spent to cast nonartifact spells. Until end of turn, you don't lose this mana as steps and phases end.