But that didn’t matter to Scarlet Witch, who used her telekinetic abilities to beat the crap out of the big purple guy.
Her power was significant enough that she broke Thanos’ sword (which was strong enough to destroy Cap’s vibranium shield), and he eventually called for fire from above because he feared for his life.
Of course, that Mad Titan wasn’t actually the Thanos that she faced off against during Infinity War.
Instead, it was Thanos from 2014, who had never met any of the heroes he was facing off against.