The moves Block and Mean Look do not exist as TMs on Pokemon Diamond. Block and Mean Look have yet to become a TM in any of the Pokemon games so far if ever.
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you teach a Pokemon that move or use a TM
most golbat know mean look and giratina knows block
yes why yes there is
If you evolve zubat to golbat it learns mean look at level 33
You have to have a Pokemon that knows mean look or block. Then use the move and they wont be able to flee.