Lucario learns Close Combat at Lv55 on all the Gen V games, including Pokemon White 2.
level 37
Yes, at level 42 Lucario learns Close Combat.
Riolu doesn't learn Close Combat, however Lucario learns Close Combat at Lv 42 (DPPt, HGSS) and Lv 55 (BW,BW2).
Lucario learns the move Close Combat at level 36. This powerful Fighting-type move is one of Lucario's signature attacks and can be particularly effective in battles. Players can also teach it to Lucario through TMs or other methods in various Pokémon games.
Infernape will learn Close Combat at Level 41.
Gallade learns close combat at level 53
heracross learns close combat at a level of 37.
Cobalion learns Close Combat at level 73.
Hariyama learns Close Combat at level 52.
Level 65
Arcanine learns Extremespeed at Lv. 49, which is the same level that Growlithe learns Flamethrower. So, if you want Flamethrower and Extremespeed, use the Fire Stone on Growlithe only at level 49.
levil 53