Mistfall Veil

Target blue creature gains shroud and can't be blocked until the end of the turn.
Flood (This spell resolves into exile. As long as it is in exile, and it has 7 or fewer flood counters on it, you may pay its casting plus {x} where X is the number of flood counters on it cost to cast a copy of this spell. If you do put a flood counter on Mistfall Veil.)