Maester Seymour
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.: 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.)
- CMC
- 3
- Mana cost
- Color identity
- G
- Rarity
- rare
- Set
- Final Fantasy Commander
- Price
- $0.35
- EDHREC rank
- #4214
Maester Seymour puts a free extra-turn engine on the table the moment it enters — Sage of Hours gets counters just for existing alongside it, and that loop is live the turn you cast it. The cost is running a narrow support piece that does almost nothing without the right pieces, but in Tidus, Yuna's Guardian shells those pieces are already assembled.
Best Commanders
Commanders with the highest synergy

Tidus, Yuna's Guardian
Tidus, Yuna's Guardian is the primary home because the deck is already built around stacking counters on FFX creatures, and Maester Seymour feeds that engine directly while enabling the Sage of Hours infinite-turn line the archetype wants.

Jenova, Ancient Calamity
Jenova, Ancient Calamity runs counter-distribution as a core mechanic, and Maester Seymour slots in as a reliable trigger generator that keeps the proliferate and counter-doubling effects firing every turn.

Yuna, Grand Summoner
Yuna, Grand Summoner's aeon-summoning plan naturally accumulates counters across multiple permanents, making Maester Seymour a cheap enabler that accelerates the board state Yuna needs to close games.

Halana and Alena, Partners
Halana and Alena, Partners distribute power counters on entry, and Maester Seymour converts that incidental counter production into a meaningful extra-turn threat when Sage of Hours is in play.
Format Analysis
Where it lives, where it can’t
| Format | Verdict |
|---|---|
| commander | legal |
| legacy | legal |
| modern | not legal |
| pioneer | not legal |
| standard | not legal |
| vintage | legal |
| pauper | not legal |
| oathbreaker | legal |
Commander is unambiguously where Maester Seymour belongs — the card is built for the FFX creature package and reads like a plant for specific synergy decks rather than a standalone threat. In Legacy and Vintage it's technically legal but has no competitive application; the effect is too slow and too reliant on a tribal scaffold that doesn't exist in those formats. Oathbreaker could theoretically support it in a counter-heavy build, but the smaller deck size and faster pace make the setup fragile. Treat Maester Seymour as a Commander-only card in practice.
Key Combos
Combo lines featuring this card



Maester SeymourCrystalline CrawlerAggravated Assault
Infinite combat phases; Infinite untap of creatures you control; Infinite mana creatures you control can produce; Infinite colored mana; Infinite +1/+1 counters on creatures you control
View on Commander Spellbook ↗


Maester SeymourCrystalline CrawlerHellkite Charger
Infinite colored mana; Infinite combat phases; Infinite +1/+1 counters on creatures you control
View on Commander Spellbook ↗


Maester SeymourCrystalline CrawlerNajeela, the Blade-Blossom
Infinite colored mana; Infinite combat phases; Infinite +1/+1 counters on creatures you control
View on Commander Spellbook ↗Price Context
Current price
$0.35 bulk tier
At $0.35, Maester Seymour is a bulk rare — you're paying almost nothing for a card that does real work in the decks that want it. Bulk status is appropriate here; demand is narrow enough that no price spike is coming unless the FFX archetypes spike in popularity wholesale.
Explore
Sources
Updated . Data from Scryfall, EDHREC, and Commander Spellbook.
