aurelion spellvamp and yasuos unexplaned true damage.
i looked back into the stats after a game with a suspiciously high kda yasuo, and discovered around 2.5k true dmg (1.6 to champs) that i cant figure out. iv tried checking build ( BloodThirster, PhantomDancer, static shiv, phage, caulfields, berserkers.) and they only had only 4 dragons.
also an aurelion sol i saw was gaining health on every passive hit and had built no items for spellvamp.