Mark of Skilled Effort is an Encounter power available to Runepriests at the 2nd level.
Mark of Skilled Effort
Runepriest Utility 2
You summons the runes of the knowledge to conced an ally the skill it needs to complete an arduous task.
Encounter ✦ divine
Distance 10
Target: An ally
Effect: Until the end of your next turn, the target gains a +5 bonus power to her/his next skill check of a non trained skill, or a +2 bonus power to her/his next skill check of a trained skill.