Outworld Destroyer + Tidehunter

Why this works

Thinking about this combo as a simple Ravage into Sanity's Eclipse is a common trap. While that can be effective against mana-heavy heroes, the real value is more fundamental. Tidehunter provides the lockdown that a fragile, immobile hero like Outworld Destroyer needs to deal damage safely. A full Ravage duration is an open invitation for OD to stand still and melt a priority target with Arcane Orb. Tidehunter’s Gush also strips armor, making the target even more vulnerable. Outworld Destroyer can return the favor by using Astral Imprisonment to save a retreating Tidehunter or to set up an initiation for him.

The pairing is strongest in the mid-game, when Tidehunter gets his Blink Dagger but before enemies have built their core defensive items. Once Black King Bars appear on the other team, the nature of the fight changes. Tidehunter’s Ravage still stuns everyone, but Outworld Destroyer loses his ability to follow up with Sanity's Eclipse on key targets. The fight then depends on whether OD can survive long enough to unload his damage after BKBs wear off, or if Tidehunter can successfully isolate a support for him to burst down during the initial Ravage.