With the universe being so big, lots of highly unlikely phenomena are bound to happen here and there. Like if the terrestrial planet originated from a metal-ric

With the universe being so big, lots of highly unlikely phenomena are bound to happen here and there. Like if the terrestrial planet originated from a metal-rich star system, got kicked out by gravitational slingshot, wandered for a while, and happened to come near a metal-poor star with a suitable velocity. But this would be an extremely rare.