Bane vs Shadow Fiend

How this matchup plays

Stalling out Shadow Fiend's farm is a real possibility here. Bane has several tools that directly interfere with what Shadow Fiend wants to do. Fiend's Grip is a long, single-target lockdown that is perfect for killing a fragile hero before they can react, while Nightmare is a reliable setup for ganks and can interrupt his spellcasting. Even in lane, the damage reduction from Enfeeble can make it harder for SF to secure last hits, slowing down the rate he builds Necromastery stacks and delaying his key item timings.

The threat of this lockdown forces Shadow Fiend to play from a safer position. He might have to wait for Fiend's Grip to be used on someone else before he can join a fight, or he'll be forced to rush a Black King Bar when he'd rather build more damage. Bane's job is to create pressure and punish SF's movements across the map. However, Shadow Fiend farms much faster, and if he can avoid dying and find space to clear waves and jungle camps, he can often get the BKB he needs. Once that item is active, Bane's control becomes far less of a factor.