League-of-legends – Can you cleanse out of knock-up’s or knocked-backs

Life Steal and Spell Vamp don't proc based on the damage bonus source of the skill (AD versus AP), nor is it based on the damage type (physical versus magical). It's actually based on the kind of skill.

In general, Spell Vamp is the only drain effect that affects skills. All of Lee Sin's skills, despite all being AD-based physical attacks, use Spell Vamp and Spell Vamp alone. Akali is an example of a somewhat physical champion whose attack skills are all Spell Vamp-based (her innate Life Steal is to benefit her auto-attacks only). Even skills like Ashe's Volley, which applies her Frost Shot effect (but only that, the key point being as you'll read up soon), will use Spell Vamp.

Life Steal generally applies only to your auto-attack, but it also applies to skills that apply on-hit effects. For example, Blitzcrank's Power Fist deals 100% extra damage and pops the target in the air in addition to applying on-hit effects (for items like Black Cleaver). This benefits from Life Steal instead of Spell Vamp. Other examples of skills that benefit from Life Steal would be Irelia's Bladesurge, Ezreal's Mystic Shot, and Gangplank's Parrrley.

As far as I know, there is no skill which benefits from both Spell Vamp and Life Steal. It's always one or the other.

Orianna is very reliant on her ball, pick champions with high mobility and/or sustain. When playing against Orianna, take consideration of these points.

1. Always stay away from the ball, if you run into the ball she'll cast her spells on it. Try to dodge it too. (start with boots)

2. If she planted the ball near you, try to have minions between you and the ball, it reduces the damage per target hit.

3. Orianna's spell damage is not super high early game because of that she will try to harrass you despite her mana cost on her q being lowered a month ago or so. She will run out of mana quickly.

4. Orianna is very squishy, try to harrass her back, after she missed a q. you can bully her around for a few sec.

5. As i've mentioned before, Orianna can't instantly kill you, she counts on harrassing you to 50% health before actully attemping to attack(thats early and middle game) so if you are willing to have a clash with her, make it fast.

6. Orianna has such short cooldowns with the right items, not to mention that she counts on the combo of her skills all together so any silence or stun in the middle of her combo will ruin it.

7. Beware of her passive, it gets underestimated a lot but when she gets a few autoattacks on you, it hurts..