Rufus is a melee anti-mage assassin, fighter, jungler (?) or dps. Can be played AP, AD, hybrid and on-hit.

Health 390 (+85) Attack damage 53 (+2.5)
Health regen. 4.35 (+0.55) Attack speed 0.625 (+2.45%)
Mana 235 (+60) Armor 12 (+3.9)
Mana regen. 7.0 (+0.75) Magic res. 30
Range 125 Mov. speed 315

(Innate): On enemy champion kill or assist Rufuses last used ability is refreshed.

Q: Shamans Staffblade

On toggle on: Rufus gains attack speed for 2.5 seconds.
On toggle off: Rufus gains movement speed for 2.5 seconds.
While toggled on: Rufuses basic attacks deal additional magic damage based on his maximum mana. He gains 10% attack speed while attacking enemy units, stacking three times.

Mana Cost: 65% of Magic Damage component per hit
Cooldown: 4 seconds
Magic Damage: 4/10/16/22/28 (+3% of maximum mana)(+20% of ability power)
Toggle off/on movement/attack speed: 12/16/20/24/28 %

W: Slicing Spin

Damages surrounding enemies. Enemies take up to 50% increased damage depending on their missing health (1% increased damage for every 2% of health missing)

Mana Cost: 6% of maximum mana
Cooldown: 16/15/14/13/12 seconds
Aoe Radius: 450
Magic Damage: 60/90/120/150/180 (+5% of maximum mana)(+25% of ability power)
Maximum magic damage: 90/135/180/225/260 (7.5% of maximum mana)(37.5% of ability power)

E: Mystifying Cloud

Blocks a single enemy spell in the next 3 seconds. If a spell is blocked Rufus' regains health equal to 12% of his maximum mana.

Cost: 40/65/80/95/110 mana
Cooldown: 20/18.5/17/15.5/14 seconds

R: Pulse Rush

Releases a wave of energy in a line in front of him, damaging all enemies hit. When the wave reaches its max range Rufus will teleport to it.

Cost: 90/115/140 mana
Cooldown: 35/30/25 seconds
Range: 650
Width: 150
Magic Damage: 150/225/300 (+0.7 per ability power)

Ability details:

Innate: This is similar to Katarinas passive. Rufuses passive will only refresh one ability, that being the one he used most recently.

Q: This is a togglable ability. While toggled on Rufus gains a stacking attack speed buff while autoattacking and his autoattacks deal additional damage. Also, toggling this ability on will give him another attack speed buff for a short time. Toggling this ability off will give him a movement speed buff for a short time.

W: Point blank spell that damages surrounding enemies for magic damage. Enemies take more damage the more wounded they are.

E: Sefl-cast ability that will placea a shield on Rufus and block the next enemy ability in the next few seconds. If a spell is blocked Rufus regains some health.

R: A skillshot spell that damages enemies in a line, similarly to Ezreals Essence Flux. When the projectile reaches its max range Rufus will teleport to it.

Tear of the goddess would be his core item. Depending on his item build he can build either Archangels staff or Manamune. Rod of ages would also be a viable choice to build. Attack speed and hybrid items would be viable on him, it wouldn’t grant him much damage on Q and W but it would make him a good duelist. On-hit would be viable even without much mana because of the attack speed buff and base damage on Q. In team fights his job is too jump in with R when everyone is low on health and then deals large amounts of AoE damage with W. Possibly getting a kill or assist, his W would be refreshed and available for another burst of AoE damage. With some spell vamp he shouldn’t be an easy kill as double W is great for getting health back. If he gets another kill or assist he can use R to chase or if he is left alone he can cast another W or possibly E if he faces an durable caster.