Nothing really, but if you get the Nintendo event only Pokemon Arceus, you can use them to change the type. so attaching a flame plate will make Arceus fire type e.t.c.
this is the same as Pokemon platinum, they are in the underground, they do take a while to find.
you get to trade with Pokemon diamond pearl or diamond hope it helps
you cant trade Pokemon diamond pearl with leaf green. You can only do that if you trade Pokemon from leaf green to diamond pearl.
i dont thin enything happens
== == you really cant tell because they're different in pearl/diamond so sorry.com?????????????????????????????
They power up certain moves and change Arceus's type/form!
Nothing.
trade diamond from Pokemon diamond onto Pokemon pearl
You trade Magmar from Pokemon pearl,diamond,or platinum to ether Pokemon pearl,diamond,or platinum.
Brocks happiny evolves and stuff...
A drifloon appears.
THE POKEMON THAT ARE NOT FOUND IN DIAMOND AND PEARL ARE:MANAPHY PHIONE