Monastery Siege
Enchantment
As this enchantment enters, choose Khans or Dragons.
• Khans — At the beginning of your draw step, draw an additional card, then discard a card.
• Dragons — Spells your opponents cast that target you or a permanent you control cost 
more to cast.
- CMC
- 3
- Mana cost
- Color identity
- U
- Rarity
- rare
- Set
- Fate Reforged
- Price
- $1.32
- EDHREC rank
- #5656
Monastery Siege lets you loot twice each upkeep or tax every spell targeting your creatures and planeswalkers — pick the mode that matters and it immediately shapes the game. Three mana for a repeating, uncounterable effect is a fair rate, and the flexibility means it rarely sits dead.
Best Commanders
Commanders with the highest synergy
Sivitri, Dragon Master
Sivitri, Dragon Master tutors for Dragons and wants to hit her minus reliably, so Monastery Siege's Khans mode filters aggressively toward her dragon targets while the Dragons mode backstops her creatures against spot removal — both halves pull weight in the same deck.
Format Analysis
Where it lives, where it can’t
| Format | Verdict |
|---|---|
| commander | legal |
| legacy | legal |
| modern | legal |
| pioneer | legal |
| standard | not legal |
| vintage | legal |
| pauper | not legal |
| oathbreaker | legal |
In Commander, Monastery Siege earns its slot in any blue deck that values card selection — the Khans loot is card-neutral but velocity-positive over a long game, and the Dragons tax mode is surprisingly punishing in a format full of Swords, Paths, and targeted bounce. In Legacy and Vintage the card sees essentially no play; those formats move too fast for a three-mana enchantment with a delayed, incremental payoff. Modern and Pioneer are similarly hostile — permanents at this rate need an immediate board impact to compete, and Monastery Siege does not provide one. Oathbreaker mirrors Commander closely enough that the same logic applies.
Key Combos
Combo lines featuring this card
Price Context
Current price
$1.32 cheap tier
At $1.32, Monastery Siege sits firmly in the cheap tier — low enough to be a no-budget-justification inclusion in any blue Commander deck that wants either effect. Bulk enchantments with narrow competitive demand tend to stay in this range, so don't expect the price to move meaningfully in either direction.
Explore
Sources
Mentioned
Updated . Data from Scryfall, EDHREC, and Commander Spellbook.