Weapon and Armor Proficiency: Half-elf paragons are proficient with all simple weapons, and light armor.
Spells per Day: At 2nd level, a half-elf paragon gains new spells per day (and spells known, if applicable) as if she had also gained a level in a spellcasting class she belonged to before adding the level. She does not, however, gain any other benefit a character of that class would have gained (bonus metamagic or item creation feats, bard or assassin abilities, and so on). This essentially means that she adds the level of half-elf paragon to the level in the spellcasting class, then determines spells per day, spells known, and caster level accordingly.
If a character had more than one spellcasting class before she became a half-elf paragon, she must decide to which class she adds the level of half-elf paragon. If a half-elf paragon has no levels in a spellcasting class, this class feature has no effect.
Bonus Feat (Ex): At 1st level, a half-elf paragon gains a bonus feat. The character must meet the feat's prerequisites normally.
Divided Ancestry (Ex): Unlike other racial paragons, half-elves can take levels in more than one racial paragon class. After gaining at least one level as a half-elf paragon, a character can take either elf paragon levels or human paragon levels (but not both).
Elven Vision (Ex): At 1st level, a half-elf paragon's visual acuity improves to match that of an elf's. A half-elf paragon's racial bonus on Perception checks increases to +2.
Persuasion (Ex): A 2nd level half-elf paragon's racial bonus on Diplomacy checks increases to +3. She gains a +2 racial bonus on all other Charisma-based skills.
Ability Boost (Ex): At 3rd level, a half-elf paragon increases one ability score of her choice by 2 points.