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).
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
Because Staraptor does not learn Close Combat until Level 34, and Staravia cannot learn Close Combat at all without cheating. To make Staraptor learn/re - learn Close Combat, take it and a Heart Scale to the Move Tutor in Pastoria City