The subject of the spell gains the ability to double his chances at any particular task. Any time the target makes a die roll, he can choose to roll twice and take the better of the two rolls. Once the the luck is used, the spell ends.
There is an element of randomness to this, however. After the first round, there is a cumulative 10% chance every round that the luck fires prematurely. The next roll the target makes after this becomes the beneficial double-roll, ending the spell.
If the luck isn't used by the end of the 11th round, the spell ends and the potential benefit goes away.
The casting of this spell always creates a minor and major surge. It cannot be supressed by a Wild Magic skill check, or any magic less powerful than a miracle or wish.
This spell counters and dispels Wildly Unlucky.
Material component: A shiny copper piece.
XP Cost: 500 XP