Siren's Call
Mana cost
Mana value1TypeInstant
Color identity
Blue
RarityUncommon
SetFourth Edition (4ED)
ArtistAnson Maddocks
Price€0.24 · $0.21
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.
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.
Legality
CommanderLegalStandardNot legalPioneerNot legalModernNot legalLegacyLegalVintageLegalPauperNot legalBrawlNot legalOathbreakerLegalHistoricNot legalTimelessNot legalPenny DreadfulNot legal
Rulings
2013-09-20
If a turn has multiple combat phases, this spell can only be cast before the beginning of the Declare Attackers Step of the first combat phase in that turn.
2009-02-01
This will destroy creatures that weren’t able to attack because they had been previously tapped.
2004-10-04
It will require creatures with Haste to attack since they are able, but it won’t destroy them if they don’t for some reason.
2004-10-04
The creature is destroyed if it does not attack because it simply can’t do so legally.
Printings (12)

30th Anniversary Edition30A #374 · Uncommon · €36.91

30th Anniversary Edition30A #77 · Uncommon · €1.42

Fourth Edition Foreign Black Border4BB #101 · Uncommon · €0.56

Fourth Edition4ED #101 · Uncommon · €0.24

Summer Magic / EdgarSUM #80 · Uncommon · €125.00

Foreign Black BorderFBB #80 · Uncommon · €0.41

Revised Edition3ED #80 · Uncommon · €0.46

Intl. Collectors' EditionCEI #78 · Uncommon · €2.44

Collectors' EditionCED #78 · Uncommon · €1.10

Unlimited Edition2ED #78 · Uncommon · €1.85

Limited Edition BetaLEB #78 · Uncommon · €15.20

Limited Edition AlphaLEA #77 · Uncommon · €34.97