To recruit Ekans in Pokémon Mystery Dungeon: Explorers of Sky, you need to encounter it in specific dungeons, such as the "Sunkern" or "Sandslash" dungeons. Ensure your team has a high enough recruitment rate, which can be influenced by your team's level and the use of items like the Friend Bow. After defeating Ekans in battle, there's a chance it will join your team, so keep battling until you successfully recruit it.
Yes
he is a fake
they ask you if they can be on the tam
Nope
you recruit him by going to electric plateau
No, there isn't.
If you're talking about Pokemon Mystery Dungeon Explorers of Time or Pokemon Mystery Dungeon Explorers of Darkness, you can recruit as many Pokemon as you want. If you are talking about Pokemon Mysatery Dungeon Blue Rescue Team or Pokemon Mystery Dungeon Red Rescue Team, you can only recruit a certain number of Pokemon per friend area.
mission recruit or egg
in the second cave
no but you will find the statue of arceus
dungeon leader can be any Pokemon you recruit. you will be able to change leading Pokemon after you graduate .
concealed ruins with secret slab or mystery part