That move would be Sunny Day.
use sunny day
Yes. If you have a Pokemon like Venasaur, teach it solarbeam. in a double battle, also have a fire type like charizard. Teach the charizard sunny day. In the double battle, use sunny day, and your Venasaur can use solarbeam without charging until your sunny day wears off!!!
It is sunny in Sunyshore City.
no
There is no "best" Pokemon for skill. The pokeathelon stats vary for each individual Pokemon. Feed it the Skill April juice and that will boost the skill stat
no. sadly. it only stranthens it.
Use a move like sunny day, or use Groudon (for drought) to make it sunny. Then Cherrim will transform.
to get to sunny shore in Pokemon diamond you need to catch dialga at spear pillar
top of mt. coronet get dialga
TM11 Sunny Day can be found in the Safari Zone.
its for decoration
you get Pokemon with skill. Psychics work well. But if you suck then its not my problem