Tip for Lee Sin players

Dragon's Rage deals 200 / 400 / 600 + (200% bonus AD) + (12 / 15 / 18% of kicked target's bonus health) physical damage to all enemies that the target collides with.

This means at the start of a team fight, ult the tank into his team. All tanks have at least 3500 health, so in a late game team fight, you're going to do 600 (+200 bonus AD) + 630 damage physical damage to every champion hit (preferably aiming the tank at the marksman, mage or enemy assassin if you have to choose).

Resonating Strike (Q) deals 50 / 80 / 110 / 140 / 170 + (90% bonus AD) + (8% of target's missing health) physical damage, capping at 400 against minions and monsters.

This means after you ult, if you land your Q on the marksman (on average they have about 1900 health at level 18), they're instantly out of the fight.

Excluding the ridiculously high scaling AD bonus, that's 1682 damage. Of course you use tempest on arrival for another 200 damage then activate for another 200 damage, totaling to 2042 base damage. Easily can add another 1000 - 1500 with scaling factored in.

Then you W safely to a ward or a teammate.