The 163-165 Raid set is considered the rarest set in all Last Chaos and is extremely difficult to drop. The most common piece is the helm, then the shirt, then the pants, then gloves and finally the rarest are the boots. The only way I can describe how rare the boots are is it would be like opening a 93x5 in Last Chaos. The 163-165 Raid Armor set has the exact same seals for each class besides Night Shadow and simply differs in set options (effects). Below you will find the seals of each armor piece and the set options available for each class.

Gloves			Titan Set Option
	Evasion : 67 Melee Evasion : 159 Ranged Evasion : 135 Evasion : 67 Dexterity : 32 Reduce Weight : 15%		(2) set option effect [Melee Physical Hit Rate : 168] (4) set skill effect : Increase critical and deadly hit rate of party members for 2min.
Shirts			Knight Set Option
	Evasion : 67 Melee Evasion : 159 Ranged Evasion : 135 Evasion : 67 Dexterity : 32 Stun Resistance : 30%		(2) set option effect [Increase critical hit : 30] (4) set skill effect : Increase attack power of party members for 2min.
Pants			Healer Set Option
	Evasion : 67 Melee Evasion : 159 Ranged Evasion : 135 Evasion : 67 Dexterity : 32 HP : 100		(2) set option effect [Hit Rate : 93] (4) set skill effect : Remove all debuffs on party members randomly.
Helm			Mage Set Option
	Evasion : 67 Melee Evasion : 159 Ranged Evasion : 135 Evasion : 67 Dexterity : 32 HP Regeneration : 40%		(2) set option effect [Magic Hit Rate : 25] (4) set skill effect : Increase attack speed of party members for 2min.
Boots			Rogue Set Option
	Evasion : 67 Melee Evasion : 159 Ranged Evasion : 135 Evasion : 67 Dexterity : 32 Move Speed : 30%		(2) set option effect [Defense : 7] (4) set skill effect : Increase evasion of party members for 2min.
			Sorcerer Set Option
			(2) set option effect [Physical Defense : 12] (4) set skill effect : Decrease Magic Evasion of target for 2min. (the description is incorrect) What the skill does: Increase the Physical & Magical Defense of all Party Members by 30% for 2min

Night Shadow Set 1	Set Options (2) set option effect [Silence Resistance :30 ] (4) set skill effect : Increase self attack speed
Ruhcenuss Gloves	Lukah Shirt	Killbejer Pants	Tonita Hood	Shezhme Boots	Wing of Rage
Constitution : 16 HP : 275 Physical Defense : 6 Magic Defense : 10 Magic Evasion : 40 Dark Attack : 3	Melee Physical Defense : 9 Ranged Physical Defense : 7 Magic Defense : 10 Defense : 5 Physical Defense : 12 Stone Resistance : 20%	Melee Physical Defense : 9 Ranged Physical Defense : 7 Magic Defense : 10 Defense : 5 Magic Evasion : 40 MP Regen : 40%	Constitution : 16 HP : 100 Physical Defense : 6 Magic Defense : 5 Constitution : 16 HP Regen : 30%	Evasion : 67 Melee Evasion : 78 Ranged Evasion : 93 Evasion : 56 Strength : 24 Flight Speed : 1.5	Flight Speed : 4.0 Magic Defense : 10 Physical Defense : 12 HP Regen : 40% Flight Speed : 3.0

Night Shadow Set 2	Set Options (2) set option effect [Magic Evasion: 40] (4) set skill effect : Increase movement speed
Darasuum's Gloves	Darasuum's Shirt	Darasuum's Pants	Darasuum's Helm	Darasuum's Boots	Wings of Darasuum
Evasion : 67 Melee Evasion : 159 Ranged Evasion : 135 Magic Evasion : 40 Intelligence : 32 HP Regen : 40%	Melee Physical Defense : 9 Ranged Physical Defense : 10 Magic Defense : 20 Defense : 7 Evasion : 56 Stun Resistance : 30%	Melee Physical Defense : 9 Ranged Physical Defense : 10 Magic Defense : 20 Magic Evasion : 40 Evasion : 56 Stun Resistance : 40%			Flight Speed : 4.0 Magic Defense : 10 Physical Defense : 12 Magic Evasion : 40 Silence Resistance: 30% Flight Speed : 2.5

Note: Night Shadow raid set seals + set option will be added soon.

Thanks to DragonRaider for all seals and set options.
Thanks to Eragon_Argetlam & Pimorez for the tables.