Xander can outsmart and overpower him, if he feels like it.
They had to be, because mankind had been trying to outsmart Death since the beginning of time.
Darian walked down the hall and stairwell to the study where his brother, the White God Damian, was probably plotting how to outsmart the pesky little immortals who'd declared war on them.
Since he was the one she wanted to learn to outsmart, in case things broke bad, she doubted he'd teach her anything.
He listened, though, curious what kind of deal human-Deidre had made with the only goddess to ever outsmart the Dark One and Immortal Laws.