What’s the most efficient way to grind BP in BDSP?

Question

I want the power items but man I did like 30 battles (doubles) in the battle thing and walked out with only 10 BP please send help

Comments

Is it levels or IVS/EVS?

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BP, like, battle points. I have another question for level grinding that was left half-answered if you’re interested

Answer 1

The only way to acquire BP is indeed the Battle Tower.

I'd just keep at it and hope you get your BP.

You earn 3 Battle Points (BP) for defeating each room (7 consecutive
trainer battles) in the Battle Tower. The Tower Tycoon—who is
challenged on the 21st and 49th consecutive battle—rewards you 20 BP,
the most for a single room.

After defeating the Tower Tycoon, around the 56th consecutive battle
range, the BP you earn per room will increase to 7.