Brain Freeze - mtg.wtf

2013-06-07 A copy of a spell can be countered like any other spell, but it must be countered individually. Countering a spell with storm won't affect the copies.
2013-06-07 Spells cast from zones other than a player's hand and spells that were countered are counted by the storm ability.
2013-06-07 The copies are put directly onto the stack. They aren't cast and won't be counted by other spells with storm cast later in the turn.
2013-06-07 The triggered ability that creates the copies can itself be countered by anything that can counter a triggered ability. If it is countered, no copies will be put onto the stack.
2013-06-07 You may choose new targets for any of the copies. You can choose differently for each copy.

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