Is it even mathematically possible to die 18 times in 5 minutes?
I mean, according to the League Wiki, death timer for the first 15 mins is = Level x 2.5 + 7.5. So, at level 1 your death timer is 10 seconds. Say they died 3 times at level 1. That's 30 seconds. At level 2, your death timer would be 12.5. Say They died 5 times at level 2. That's 62.5 seconds. Total of 92.5 seconds. Level 3, death timer is 15. Another 5 deaths at level 3 would be 75 seconds. Total now of 167.5 seconds. If they died the rest of the times at level 4 (5 deaths x 17.5 seconds each = 87.5 seconds), they would have a total death time of 255 seconds. That's 4 minutes and 15 seconds. Just in death timers. That leaves only 45 seconds to walk down the lane 18 times...which I'm not sure is possible.
Even if they never reached level 2, 18 deaths of level 1 death timers would alone be 180 seconds, or 3 mins spent dead. How long does it take to walk down the lane?
I feel like there is some exaggeration happening here.