Anaxagoras
Banned
Blucher was a coal hog though, if sent to the far east she'd never leave, Spee had enough issues coaling the twins on their journey across the pacific let alone a fuel hungry semi-battlecruiser. And if the far east got the Blucher you can bet that RN overseas squadrons would be reinforced with more than just reservist vessels.
Staying in Tsingtao is a no no as you'll just be crushed by the Japanese either through bombardment or trying to face down the blockading forces and in the indian ocean you'll run out of coal as there's nowhere safe. The Emden lead a magnificent but short career but she was still basically living hand in mouth in terms of coal.
If they had the Blucher at Tsingtao, von Spee wouldn't have taken her with him. He would have unloaded most of its coal to take with him, then left the Blucher behind to serve as a floating battery during the defense of the city. This also would have had the added benefit of forcing the Japanese to keep some of their more powerful ships near Tsingtao to guard against any unexpected foray by the Blucher, which would help the rest of the squadron get away.