The Lumos Solem Spell (Lumos Solem) was a charm used to produce a blinding flash of sunlight. As Devil's Snare hated sunlight and heat, this particular light-creation spell was quite effective towards subduing it.

What spell to use to tame Devils snare?

The correct spell is Lumos Solem.

How do you beat Devil snare?

This also applies to its portrayal in the GBA version, but it instead fires seeds continuously from its mouth if within a specific range and can only shoot them diagonally (unless Harry is very close to them then they'll shoot perpendicularly); unlike the Venomous Tentacula, it can be defeated by jinxing the nearby ...