it depends what level. steel is stronger than rock so i say cobalion
No, you do not use Cobalion, Terrakion and Virizion in order to summon Keldeo.
The Three Musketeers.
IN BLACK AND WHITE: Victini, Zekrom, Reshiram, Kyurem, Landorus, Thundurus, Tornadus, Cobalion, Terrakion,and Virizion IN WHITE: Victini, Zekrom, Kyurem, Landorus, Thundurus, Cobalion, Virizion, Terrakion IN BLACK: Victini, Reshiram, Kyurem, Tornadus, Cobalion, Virizion, Terrakion
not at all
cobalion is at guidance chamber terrakion is at the victory road and virizion is at pinwheel forest
You first have to catch Cobalion so you can then catch Virizion. Because when you go to pinweel forest there are some stones covering the path to Virizion so I'd recommend getting Cobalion first. Then after that you can catch Terrakion.
the legendary trio of unova are Cobalion, Terrakion, and Virizion
There is 4 legendaries in the game witch is : Cobalion, Terrakion, Virizion And Reshiram , You can get terrakion in victory road, Cobalion in mistralton cave, Virizion in Pinwheel forest and Reshiram in N's Castle
You must go to route 6, and use Surf to find Cobalion's cave. Once Cobalion is caught, the pathways to Virizion and Terrakion will open.
You have to defeat the Elite Four again to catch Terrakion, Virizion, and Cobalion.
once
You can get Cobalion, Virizion, Terrakion, Kyurem and Zekrom (only in White).