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Class
Paladin
At 2nd level, you adopt a style of fighting as your specialty. Choose one of the following options: Defense, Dueling, Great Weapon Fighting, or Protection. You can't take a Fighting Style option more than once, even if you later get to choose again. (SRD 5.1 p.31)
RollQuest ships the D&D 2014 SRD as a content pack, on a 5e character sheet that does the maths - roll from the sheet and let the numbers work themselves out. Free to start.