Although Dream Thief says it looks for "another blue spell," there's no requirement that Dream Thief actually be cast as a spell (or be blue) for this part of its ability to work. For example, if a spell such as Zombify puts Dream Thief directly onto the battlefield, its ability will still check whether you've cast a blue spell this turn, even though you didn't cast Dream Thief itself as a spell.
01-08-2008
wotc
Dream Thief doesn't check whether you've cast another blue spell until its "enters" ability resolves. If Dream Thief's "enters" ability triggers, then you cast a blue instant spell in response, you'll get the bonus.
Random a card of Magic: The Gathering (MTG), but you can also roll the D20 dice, random a Planeswalker, have fun with the random rules and more.
Howard Lyon2008-07-25
