Description: Spawn Dragon's Dream on an enemy row for 3 turns.
Effect: At the start of the owners turn, when timer expires, damage all units in this row by 3.
Using Vaedermakar to decrease row effect duration while Dragon's Dream is already in play will trigger the damage earlier, pressuring the opponent to act sooner or, in the case of DD having 2 turns left, triggering damage before the opponent can react. This can also be used to trigger Dragon's Dream during your turn if it has only one turn left; in this case, best used on your last turn or if your opponent passes and you need it to trigger sooner.
See this subject on The Witcher wiki: Dragon's Dream (bomb)