The Genji Armors are post Gilgamesh armor sets crafted from Genji Token at the rate of 1 token per piece. The sets are: Azure (Magic), Golden (Melee/Tank), Crimson (Range), Silver (Summoning), and Veridian (Throwing). Genji Leggings is used by all the sets and none have their own leggings.
The Azure Genji set gives: 90 defense, 65% increased magic damage, 35% reduced mana usage, 87.5% increased run speed, +200 Max Mana, +275 Max Life, and +8 life regen. It's set bonus enables the Bitter End armor ability which costs 400 mana and summons a mass of energy at your location. After 4 seconds, it explodes, launching approx 50 spheres outwards in a circular motion. The spheres inflict massive damage to anything they hit, but are easily blocked by walls. This ability can not be used while experiencing Mana Sickness.
The Golden Genji set gives: 115 defense, 50% increased melee damage, 25% increased melee speed, 87.5% increased run speed, enemies are most likely to target you, +500 Max Life, and +8 life regen. The set bonus swings Masamune each time you attack with a melee weapon (with the exception of yo-yos, ranged melee weapons won't trigger it) Masamune hits in the low 600's and mid 800's without any additional modifiers and does not seem to have any additional effects.
The Crimson Genji set gives: 100 defense, +50% ranged damage, +35% ranged crit chance, 87.5% increased run speed, attacks no longer consume ammo, +350 Max Life, and +8 life regen. It's set bonus enables the Ranged Mastery armor ability, which sacrifices all your defense, but gives 0.5% increased ranged damage for every point of defense sacrificed, after all other modifiers.
The Silver Genji set gives: 85 defense, +75% Minion Damage, +75% Minion Knockback, 87.5% increased run speed, Max sentries +4, Max Minions +8, +200 Max Life, and +8 life regen. The set bonus summons a miniature version of Enkidu as an armor bound minion. As a minion, Enkidu functions similarly to Ice Core-X Staff's summon, but with more speed, more power, and it's attack spreads out in cone formation.
The Veridian set gives: 105 defense, +60% throwing damage, +60% throwing velocity, +20% throwing crit chance, 87.5% increased run speed, thrown weapons are no longer consumed, +425 Max Life, and +8 life regen. It's set bonus enables the Shadow Dodge armor ability which lets you dodge the next attack you receive within 2 seconds and has a 20 second cooldown