Yeah, you're not wrong or mishear! This bug ruined many games and even more brain nerves. The bug appeared after patch 6.75 (2013). To become Rosh master, it was necessary to pick Chen and use the Test of Faith ability on Roshan. After Chen “domesticates” Roshan, the personage could control the Monster, which became invulnerable to enemy creeps, buildings and, of course, opponents. Surprisingly, Roshan could not be killed or damaged, because, as you remember, you can hit/kill Roshan only inside the Roshpit. Meanwhile, Roshan could deal damage and push lanes, killing everyone who gets in his way.
This disgusting bug appeared in patch 7.23 (2019) with Puck. However, in order to reproduce this bug, you should collect a few cooldown reduction artifacts and choose two appropriate talents. First one - level 15 talent, which allows you to make an instant attack on all enemies when casting the Phase Shift ability. The second one, level 25 talent, granted 420 additional gold per minute, making it much easier to purchase key artifacts. Next, it was necessary to buy an Octarine Core. The third condition is getting the neutral item Quickening Charm, which reduces the cooldown of all abilities and items by 12%. If you acquire all the listed items, then Puck becomes literally immortal and destroys everything in the 600 range area.
Do you remember the legendary TI-3 semi-final NAVI-TongFu? Masterpiece Meat Hook by Daniil “Dendi” Ishutin became a part of Dota 2 history. This system bug caused a strong public reaction and forever froze in the memory of The International 2013 viewers. Then Clement “Puppey” Ivanov picked Chen and, in cooperation with Pudge, moved the enemy Gyrocopter right under the fountain of his team. To implement this mechanic, it was necessary to use the Holy Persuasion ability on Pudge, who at that time had to “hook” the enemy with a certain delay. As a result, enemy Gyro picked up by the “hook” helplessly flew under the fountain. Be sure to watch that moment one more time!
Initially, this error was used to get a map area overview. But, if you rapidly right-clicked on a single map spot to send Snapfire there, and then used an ability on that spot holding the same mouse position, then the Ultimate animation hung in the air and gave a vision. Additionally, frozen animation reduced FPS for everyone who focused the game camera on it, but later FPS decreased for all players on the server. As a result, if you wait long enough, the bug abuse leads to the crash of the server.