Blinding Speed

   Type of feat: general (epic)
   Prerequisite: 21st level, dexterity 25+
   Specifics: The character is able to cast instant action haste on himself once per day. The effect will last 10 rounds.
   Use: selected
   Notes
   Requires Hordes of the Underdark.
   This feat will displace a single instance of each of expeditious retreat, haste, and mass haste, provided those spells had been cast by the character.
   This feat cannot be selected when taking a level of Harper scout.
   The haste effect is subject to dispelling. The effective caster level is the character's total hit dice.

Arelith Changes

Blinding Speed: Is now an Instant action and an extraordinary effect (not affected by antimagic). Duration increased to 3 turns. Has unlimited uses per day, but 8 turns of cooldown period. The cooldown of Blinding Speed is reduced by 1 turn every 6 combined Assassin, Harper Scout, Invisible Blade, Rogue, Shadowdancer, Swashbuckler and Zhentarim Operative levels. Rogue levels are not required for this bonus to trigger.

Removed Haste as feat effect but added all individual effects of Haste EXCEPT the spell casting effect.

Added: +1 APR (Attack per round)

Added: +50% Move Speed

Added: +4 Dodge AC

Removed: All spell casting times are cut in half

If Haste is cast on someone with Blinding Speed, Blinding Speed is cancelled and Haste is applied