If you play well in Metin2 and build your shaman correctly, you will have no troubles getting a party. Below is the shaman skills list:
Natures Blessings: What would a healer be without a heal? This is generally the first skill mastered for a Healing Shaman.
Natures Enchantment: Improves attack power for a certain amount of time (varies depending on the skills level), it improves the amount healed, but until latter levels(Metin2 yang), 1 point is sufficient.
Speed of Wind: Increases movement speed, and at Master levels increases your casting speed, this skill is generally the second to master for a healing shaman.
Lightning Lance: Cool Down: 7 Seconds, 1 point is sufficient for this skill, as a healer is generally not offensively inclined, we would recommend this skill out of the 3 offensive skills the healing shaman has to offer.
Chain Lightning: Cool Down: 10 Seconds, In latter levels 1 point is sufficient, take note; use this wisely as for every mob you attack with it, it shoots out a recoil bolt that can strike random enemies, generally 1 of the 3 you are attacking.
Lightning Strike: Cool Down: 15 Seconds; Chance to Faint 5% ( at level 1 ), this spell looks pretty cool, but compared to the other offensive skills you have, this is slightly worse, top that off with a 15 second cool down, and its not all to appealing.