Siren's Call
Instant
Cast this spell only during an opponent's turn, before attackers are declared.
Creatures the active player controls attack this turn if able.
At the beginning of the next end step, destroy all non-Wall creatures that player controls that didn't attack this turn. Ignore this effect for each creature the player didn't control continuously since the beginning of the turn.
- CMC
- 1
- Mana cost
- Color identity
- U
- Rarity
- uncommon
- Set
- Fourth Edition Foreign Black Border
- Price
- —
- EDHREC rank
- #21116
Siren's Call forces all of an opponent's creatures to attack this turn or be destroyed at end of turn — instant speed, one blue mana, and it punishes anyone who stumbled into a defensive board state. It's a niche political weapon that earns its slot only in decks that can exploit the forced attack, not a generic blue staple.
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 |
Siren's Call is legal in Commander, Legacy, Vintage, and Oathbreaker, but its real home is Commander where multiplayer politics and combat manipulation matter most. In a four-player pod it can redirect a threatening board into an opponent who's better positioned to absorb the hit, or clear out utility creatures that never attack. Legacy and Vintage have no use for it — those formats move faster than a one-mana instant that does nothing the turn a stabilized board exists. Oathbreaker is the one other format where it occasionally fits, particularly in blue shells that want to force poor combat decisions.
Key Combos
Combo lines featuring this card
Price Context
Current price
unknown tier
Pricing data isn't currently available for Siren's Call, so check Scryfall or TCGPlayer for current market listings. It's a low-demand casual card and has historically sat well under a dollar in most printings, so don't overpay.
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Sources
Mentioned
Updated . Data from Scryfall, EDHREC, and Commander Spellbook.