ditto or the opposite gender venasour. (there might be others if your venasour is a female)
it evolves fire types
Nothing evolves from Puppetmon, Puppetmon is mega level.
Pidgey evolves into Pidgeotto at Level 18, and Pidgeotto evolves into Pidgeot at Level 36. The only evolution that Pidgeot is capable of is Mega Evolution in Generation VI; aside from Mega Evolution, no Pokémon ever evolves more than twice.
you get him in 7 island and you must have a venasour
It evolves at level 36; to the Mega Fire Pig pokemon, Emboar.
Only Treeko can learn Mega Drain at level 26 in all games. It evolves into Grovyle at level 16 and into Sceptile at level 36.
Dragonite does not evolve. Dratini evolves into Dragonair at Level 30, and Dragonair evolves into Dragonite at Level 55. No Pokémon ever evolves more than twice, except via Mega Evolution, which Dragonite is incapable of.
Sceptile is purely a Grass-type Pokemon, but when it Mega Evolves, it'll be Grass/Dragon-type.
Gallade is a Psychic/Fighting-type Pokemon. This type remains the same even when it Mega Evolves as well.
Swampert does not evolve. Marshtomp evolves into Swampert at lv.36
Sceptile learns false swipe at level 59. This Pokemon evolves from Grovyle at level 36. Sceptile is a final form but using a mega evolution stone, does have a mega evolution.