MLXG starts a team fight
When both teams are even in gold, MLXG feels that RNG is at a great advantage and thus he does not hesitate to start a team fight. When RNG is 3k behind in gold, MLXG thinks that RNG is at a small advantage, and he so he starts a team fight to secure their "lead". When RNG is behind 7k in gold, MLXG thinks that RNG is at a disadvantage and so he looks for a team fight to regain control of the game. When RNG is 10K behind in gold, MLXG thinks that the team has reached a desperate situation and they are only waiting passively for their death if he does not start a team fight.