Rubick + Tiny

Why this works

Picking these two together puts your Rubick in a tough spot. A huge part of Rubick's value comes from Spell Steal, and Tiny's abilities are poor targets. Stealing Toss is awkward and unreliable, while Avalanche is only a basic stun without the full combo. The enemy team knows this. They can see that a potential set of spells for Rubick to copy is on his own team, which frees them up to pick heroes with less game-changing abilities. It fundamentally limits what Rubick can bring to a fight.

In practice, this means your team lacks a certain kind of magical threat. Rubick is forced to play a more reactive game, hoping for a mistake or a good steal from a less impactful enemy. Tiny needs setup to land his full combo on multiple heroes, but Rubick’s Telekinesis isn't always the best tool for that compared to other supports. The combo doesn't feel natural. Tiny will try to find his own openings, and Rubick will be hunting for any decent spell, but they rarely work together to create something greater.