Can you catch Dialga without a master ball?

yes you can, but its pretty hard. the best way to catch it is to lower its health alot, till it has about 1-20 hp or really low on the red zone and then put a condition on it like sleepy or paralyzed or even frozen. DO NOT burn it, poison it or confuse it. use ultra balls, and when the battle gets really long use some time balls

在宝可梦游戏中，捕捉宝可梦通常需要使用精灵球系列的道具。Dialga作为一只传奇宝可梦，其捕捉难度较高，一般建议使用(master ball)_master球来确保能够成功捕捉。不过，如果不使用master球，理论上也可以尝试使用其他类型的精灵球，但成功捕捉的概率较低。此外，游戏中可能还有特定的条件或剧情任务，允许在没有master球的情况下捕捉Dialga。具体情况取决于你所玩的游戏版本和情节。