You can reteach leaf blade to grovyle. First, head to route 118, and press A on the rock towards the bottom of the shore line, near the fisherman*. That rock should have a heart scale. Then, head to Fallabour Town, and go into the house on the edge of the town. He's known as the move tutor, and he can teach any move to your Pokemon that it's learned. He'll provide his service for a heart scale in exchange for each move you reteach.
*I can't remember whether that rock has a heart scale. There are more heart scales: There are some on the shore line in Lilycove, and there are also some underwater, in the little dark spots, and some times in rocks as well.
It depends on what Pokemon you have in the daycare. The Pokemon that hatches from the eggs given to you by the daycare man will be the pre-evolved form of the female Pokemon you have in the daycare.
Depends which daycare.
You have to pull the pokemon out of the daycare to check the level
No, it is not possible to get baby Pokemon in the daycare.
There is not a daycare in kanto
You can only give 2 Pokemon to the daycare centre
a daycare checker is an app on Pokemon diamond and pearl. It lets you see what 2 Pokemon are in daycare and lets you see what level they are.
the daycare is in solaceon town.
Daycare
No
Yes. Any Pokemon that you leave at Pokemon Daycare to breed will be returned to you, as long as you pay the daycare fee.
If you mean BREED Pokemon in Pokemon white, you put a girl and boy of the same Pokemon in daycare, and you will later get an egg from the daycare people.