Army composition that can trade cost effectively with Cumans' Steppe Lancer when massed

As we all know, because of the stacking, the speed, the cost, the attack... of Cumans' Steppe Lancers, they are unstoppable when massed. I am trying to test which civ has a chance to fight Cuman. These are something that could work theoretically based on my tests.

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Saracens: Mameluke

Incas: Kamayuk

Slavs: Boyar + Halbs (Actually, Teutonic knight/Elephants + halb could also work, but they are too slow that Steppe Lancer can easily out micro them)

Wall + SO.....

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Some other civs maybe able to win this by hit-and-run, but it really depends on the map, and Cumans' Steppe Lancer runs really fast.

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Any other thoughts? Note that the requirement of unique units means that they may not be the solution to a intense high-level play, but these at least give you a chance when you can out boom your opponent.