Instant, 1R (2) Choose one - Thunderbolt deals 3 damage to target player; or Thunderbolt deals 4 damage to target creature with flying. "Most wizards consider a thunderbolt to be a proper retort." -Ertai, wizard adept
Illus. Dylan Martens
The decision to target a flying creature or a player is made on announcement This decision cannot be changed if the spell is redirected. [bethmo 1997/10/07] See Rule G13.13 on Modal spells.