wotc
The value of X is determined only once, as Maester Seymour's last ability resolves.
MTG · Card
◇ Catalog #68
Maester Seymour
fic·#68·rare·nonfoil
Illus. Norikatsu Miyoshi
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in vault
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for trade
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wishlisted
Jun '25
1 yr ago
Value
$0.34+$0 (+9.7%)
30 days high $0.38 · low $0.29
Volatility · high
TIX2.14 tixEUR€0.49USD$0.34
Where to buy / sell
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Buy this card
Played in EDH
EDHrec rank #4,191 · Niche pick
Variants
Gameplay
Legendary Creature — Human Elf Cleric
At the beginning of combat on your turn, put a number of +1/+1 counters equal to Maester Seymour's power on another target creature you control.
{3}{G}{G}: Monstrosity X, where X is the number of counters among creatures you control. (If this creature isn't monstrous, put X +1/+1 counters on it and it becomes monstrous.)
1/3
Legalities
tlrlegal
duellegal
brawlnot legal
pennynot legal
PreDHnot legal
Rulings · 4
wotc
If Maester Seymour is no longer on the battlefield when its first ability resolves, use its power as it last existed on the battlefield to determine how many +1/+1 counters to put on the target creature.
wotc
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.
Notes
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Magic: The Gathering · ™ & © Wizards of the Coast · Illus. Norikatsu Miyoshi
Card data via Scryfall. Rarix is fan-made; not endorsed by the rights holders.