meowth can but no one else can.
some missions give you an egg, but that's very rare it happens so i don't recommend trying..... sorry hope it helped.
That would be personal opinion but Explorers of the sky do have alot of extras added that time and darkness dont have.
you can not.
NO!
Look at its stats after training it to level 100 if it has more attack teach it moves like aeroblast, earthquake, sky attack, shadow ball, if it has more special attack teach it moves like psycho boost, hydro pump, ice beam, thunderbolt.
teach it dig or other ground type moves.
You get them as rewards for missions sometimes
Only in Explorers of Time you can be Eevee. I thought you (Hero or Partner) can be Eevee in Explorers of Sky.
teach them both DIG
mission recruit or egg
In Pokémon Mystery Dungeon: Explorers of Sky, Frenzy Plant, Blast Burn, and Hydro Cannon are powerful moves that can be taught to their respective starter Pokémon (Torterra, Charizard, and Swampert) after reaching a specific level. These moves can be learned when the Pokémon reaches level 50, provided they have already learned their basic type moves. To teach these moves, simply level up the Pokémon until they reach the required level, and then select the move during their level-up options. The moves will replace a standard move in the Pokémon's move set.
It depends who you are and what moves you know
An egg can't have a Kecleon inside. Kecleon can't even be obtained trough wondermail.
i do not have explorers of sky
At the end of Surrounded Sea, Sunflora will tell you about this at the guild after you rescue Scizor.
You havE to evolve it with a sun scarf. And I learns aura sphere eventually. If you are impatient, go to electrics and he can teach it to you
just keep on pounding him moves like discharge and try to slow him down with scary face