Yes, BLUCHER is a Scrabble word!

Letter values in Scrabble US: B 3, L 1, U 1, C 3, H 4, E 1, R 1.

Is it a valid word?

BLUCHER is a valid word in the official Scrabble dictionary (US), the UK Scrabble Dictionary and Words with Friends (ENABLE).

Prussian general who is remembered for his leadership in the wars against Napoleon (1742-1819)
a high shoe with laces over the tongue

Also: von blucher, g. l. von blucher, gebhard leberecht von blucher.