Sentinel Tavern

Rhasta the Shadow Shaman

Range: 500 | | Move Speed: 275 | Primary: INT
Str: 16 + 1.6 | Agi: 16 + 1.6 | Int: 21 + 3
Damage: 42 - 49 | HP: 454 | Mana: 273
HP Regen: 0.73 | Mana Regen: 0.85
Attack Speed: 1.43 (+ 16% IAS) | Armor: 1.3

Skills

Forked Lightning (R)
Calls forth a cone of lightning, hitting multiple enemy units for damage.
Level 1 - 75 damage to 3 targets.
Level 2 - 150 damage to 4 targets.
Level 3 - 225 damage to 5 targets.
Level 4 - 300 damage to 7 targets.
Mana Cost: 95/ 105/ 135/ 160
Cooldown: 10

Voodoo (D)
Transforms an enemy unit into a random critter, disabling special abilities.
Level 1 - Lasts 1 seconds.
Level 2 - Lasts 2 seconds.
Level 3 - Lasts 3 seconds.
Level 4 - Lasts 4 seconds.
Mana Cost: 110 / 140 / 170 / 200
Cooldown: 13

Hero Shackles (E)
Magically binds a target enemy, so that it cannot move or attack and deals 40 damage per second. Channeling spell.
Level 1 - Lasts 2.5 seconds.
Level 2 - Lasts 3.25 seconds.
Level 3 - Lasts 4 seconds.
Level 4 - Lasts 4.75 seconds.
Mana Cost: 110/ 130/ 155/ 185
Cooldown: 15

Mass Serpent Ward (W)
Summons 8 immobile serpentine wards to attack enemies. The wards last 30 seconds, deal piercing damage and are immune to magic. With Scepter Rhasta can summon 12 wards.
Level 1 - Deals 43 max damage.
Level 2 - Deals 58 max damage.
Level 3 - Deals 73 max damage.
Mana Cost: 200/ 350/ 610
Cooldown: 120

My suggested skill build:
lvl 1: Fork Lightning
lvl 2: Voodoo
lvl 3: Fork Lightning
lvl 4: Voodoo
lvl 5: Shackles
lvl 6: Mass Serpent Ward
lvl 7: Voodoo
lvl 8: Fork Lightning
lvl 9: Voodoo
lvl 10: Fork Lightning
lvl 11: Mass Serpent Ward
lvl 12: Shackles
lvl 13: Shackles
lvl 14: Shackles
lvl 15: Stats
lvl 16: Mass Serpent Ward
lvl 17-25: Stats

My Suggested Item build:
when you choose the hero:
Ring of Regeneration
2 lesser clarity potions

Best Items:
1. Power Treads
2. Eul's Scepter of Divinity (once charges are out, convert to Guinsoo Scythe of Vyse)
3. Aghanim's Scepter
4. Dagon
5. Eye of Skadi
6. Refresher Orb

Strategies:
Once you are lvl 6 with serpent ward, voodoo, lightning and lvl 1 shackles. You are ready to kill! Firstly, find a chance to cast serpent ward when the enemy ventures with 1 or 2 creeps. Immediately cast shackles after serpent ward till the 2.75 secs is over. Then cast voodoo and whack. If he still survives, fork lightning him.

Source : Senteinel Tavern