I can just breed a Torchic from my X event one. If I throw a Ditto into the mix, I can replicate Speed Boost. I don't think the starter Torchic in ORAS can have that.
Water and Ground is mostly redundant as the former shares two of the latter's type advantages. As such, I would use a Swampert as a Ground type and not a Water type. The Ground type Earthquake has enough base power, a STAB Ground attacker is nonessential; I could comfortably use non-Ground types for Ground attacks. Sure, I could still try using a Mega Swampert as a defensive wall, but I like my defensive walls to have healing capabilities, and Rest is out of the question if Chesto Berries are.
That leaves Treecko. Sceptile is actually not too bad, with high speed from the get-go, access to strategic Grass moves, and the capacity to learn Swords Dance. Also, this isn't much, but it can know both False Swipe and a sleep-inducing move (Grass Whistle). The Hone Claws it can learn as well helps with both.
