Tricks can: make very good trick as such as taking somersaults. Using tricks to track people, use tricks to block the abilities of people, including blocking shield, but if he loses his eye contact, are not capable blocked, and he can give the pain they like least. Mightier than Chelsea, Jane and Alec's abilities. The most powerful ability in the twilight saga, because it can block the shield. Ralph Geolomin Volturi is the only one that has this capability.
Kind, helpful and almost as good as Marcus (before Didyme died, was Marcus very kind. So if Ralph had lived then, had he not been kinder to a Marcus. But when Ralph was born, was Didyme death. And when Didyme died, Marcus stricter on the rules. And it did so that he was also a little meaner. So now Ralph kinder than Marcus. But it was not until he Didyme died.).
His education is bodyguard. He is not mentioned in any of the movies or books. If you look closely at both New Moon and Breaking Dawn movies, you can see a figure standing / go to right-back for Marcus. It's Ralph. Ralph did not want to drink human blood, but does it because he is in the Volturi clan. He has at least blood thirsty in the Twilight saga. He has even less blood thirsty than Carlisle Cullen and Denali coven. He was the first who found that vegetarians fail to stop to drink them as well because they are tempted of of human blood if they have been living on animal blood for a long time. But Ralph lives on human blood, so he can control himself them. He kills only culprit. The first persons he killed was his parents. He killed his parents because they mistreated him, other children and other adults. But for the most part is it Heidi or any other of Volturi which provides blood to him.