Radiant Deathblade

radiant

+100% AD
+20% Damage Amp

It glows in the presence of enemies. Or friends. Or anything alive, really.

Source

Radiant

Base item

Deathblade

Radiant Deathblade enables

Attack Damage

Attack Damage (AD) scaling means an effect gets stronger when its holder stacks AD.
Damage Amp

Damage Amp is a multiplicative bonus to all damage dealt.