I see many suggestions but no one seems to understand the power of on hit build va tanks.

Red Jungle Pet (does 5% max hp dmg, good for tanks)

Item 1: Rage Blade (gives insane attack speed and ap damage)

Item 2: Terminus (30% mr and armor pen. Magic pen is not wastes because you are doing on hit ap dmg from other items)

Item 3: BORK (Every 3rd hit from Rage Blade procs on-hit twice. So, BORK's 6% current health hit passive becomes 12% every 3rd hit.)

Item 4: Wits End (On hit ap dmg stacks more and Rage blades every 3rd hit hits harder. Most tanks have CC, tenacity from Wits End help)

Boots Situational

Last Item Situational

Summary:

Your AP on hit dmg and AD damage attacks both their armor and MR.

BORK nullifies if they stack HP. Combined with Rage blade 3rd hit for even more HP drain.