I still recall those days when i was in bronze tier.
In a game which every lane was winning, around 20 mins suddenly our master Yi jungle gets pulled into a huge gravitational field made by a large celestial object within the enemy jungle and he is unable to respond to pings to back since the disturbance in radio waves are jamming our communications and gets killed 5 times in a row there.
I am quite certain it is a black hole singularity because its invisible to the naked eye, since i have checked their jungle quite a lot by warding the area. Another evidence that this is a cosmic gravitational phenomenon is because our master yi always says "LAG" when he gets pulled in which must stand as a acronym for "Largely Accreting Gravity".
The wierd thing is this anomaly never can be seen within our jungle. ever