Acolyte

Acolytes diff from standard RO would have to be that heal is now has a cast time with a large splash area. Though as a consequence Holy Light is given no cast time to make it the offensive undead killing option for Acolytes.

Modification Examples:

Angelus
Effect: Increases VIT DEF and INT MDEF by (5+2*SkillLV)%, also increases armor DEF and MDEF by (SkillLV)%
[LV 10] +10% DEF/MDEF, +25% DEF2/MDEF2

Cure
Area: 3x3
Effect: Cures Blind, Confusion, Silence, Bleeding, Slow Casting and Orc Head on all friendly targets in the area around the target. After an ailment has been cured, you will gain immunity to that ailment for the following 30 seconds. In WoE maps immunity is reduced to five seconds and the skill has a five second cast time.

Signum Crucis
Effect: Reduces armor DEF and MDEF of Undead property and Demon family monsters on screen by (10+4*SkillLV)%.
[LV 10] -50% DEF/MDEF

Heal
Cast Time: 0.5 + 0.35*SkillLV sec (uninterruptible)
Effect: Heals the target. When used against Undead property targets (except pets), it is a holy attack that deals half damage. Higher skill levels have a splash property, but the heal amount is decreased with distance from target.
[LV 10] 1400% MATK, 7x7 range

Pneuma
Effect: Creates a cloud around the target cell that reduces ranged non-magical damage by 45+5*SkillLV%. Attacks reduced by Pneuma will not cause you to flinch.
[LV 5] -70% ranged damage

Ruwach
Effect: Reveals Hiding and Cloaking players and monsters within range. Revealed players and monsters are hit with a holy element Magic attack with a strength of MATK*1.45. When a target is revealed, it becomes silenced for ten seconds. In WoE has a chance to freeze when used on a hidden player.

Teleportation
Effect: Allows teleporting to a random location in the current map. Level two allows teleporting to a nearby, random spot. Level three allows warping back to your respawn point. Level four allows warping to your party leader (or next online character if he is offline/dead). In WoE maps the skill has a five second reuse delay.
[LV 1] 10 SP, Random
[LV 2] 10 SP, Nearby
[LV 3] 25 SP, Save Point
[LV 4] 50 SP, Party Leader

Holy Light
Max Level: 5
Cast: Instant
Cool Down: 1 Sec
Effect: Does a single Holy element hit for 100+50*SkillLV% of your MATK.
[LV 5] 350% MATK