Can you tell me the rulings for Dream Thief?
user
0. 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.
1. 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.
assistant