Changing Shaco Backstab

Current Backstab: Shaco crits for -80% to -55% critical damage when striking from behind

New Backstab: Striking from behind crits for 20% to 45% bonus damage.

Total: 120% to 145% AD

Infinity edge would apply a 150% multiplier and make it 30% to 67.5% bonus damage.

The attack that applies backstab can crit normally making the attack deal:

220% to 245% without IE

or

280% to 317.5% with IE

This way, Shaco is rewarded for buying more crit chance.

Currently, AD Shaco doesn't synergize with crit chance very well. The problem with the current passive is that Shaco cannot crit regularly for the attack. To remedy this, backstab no longer automatically crits. Instead, it does bonus damage that is modified by crit damage.

The numbers stay the same as live if the attack doesn't crit but they rise much higher if it does.

---

The scaling can be made better if the numbers still seem low. Currently, the scaling stops at level 11. Backstab could scale to +60% (inverse of -35%) at level 17.

Numeric changes are up for discussion but AD Shaco is underpowered enough that numbers shouldn't get lowered. AP Shaco is unaffected as the changes only make a difference for buying crit chance. Technically, this is a buff with no downsides but only affects AD.