Ditto (FO 3). I will give an example, its easier to understand this way: If ditto has 60 hp and is facing an oponent with 70 hp, and the one with 70 hp dies, and the opponent puts a pokemon with 80 hp on place, ditto using suposed to die, since there is no gap between changes, this is not what is happening, ditto is being killed on this circunstance
------------------Begin Game Log------------------
The game is about to start
Type: Career
Format: Base–Fossil
Battle begins between Altair418 and Arcalimo!
No response received from Altair418
Arcalimo wins the game! Opponent left
Game was ended