Flusterstorm - Modern Horizons #255

Flusterstorm

Set: Modern Horizons (MH1)
Collector Number: 255
Type: Instant
Rarity: Rare
Mana Value: 1.0

Counter target instant or sorcery spell unless its controller pays {1}.
Storm (When you cast this spell, copy it for each spell cast before it this turn. You may choose new targets for the copies.)