I have a rules question about one of the powers Essentials mages get, Suggestion. Here's the text:
Trigger: You make a Diplomacy check.
Effect: You make an Arcana check instead, using that result to determine the outcome of the Diplomacy check.
When I looked at this, I thought it was probably useless to me, since my Diplomacy is much higher than my Arcana. But someone else said it might be intended as a second chance ability- if you roll Diplomacy and don't like the result, you can ignore it and roll Arcana instead. I can't tell if it is or not. It doesn't really follow the language for second chance abilities, but "you make a diplomacy check" implies to me that you've rolled the dice.
So how does this work? Does it give me a reroll, or do you only use your Arcana modifier in lieu of ever making the Diplomacy roll?