I don't know that I would necessarily suggest anything with R4 in the name (though some of the non timebomb wood based stuff might do), and DSTT/TTDS was always the byword for awful quality but cheap and could just about get it done.
If the hack is small you might also be able to port it to cheats -- the DS binary are copied to RAM to run, as are files in general. Most cheat engines break down after about 60 codes, some less than that, but for some hacks of a few bytes here and there that can be enough. Theoretically you could also pair it with a GBA flash cart (the GBA cart is visible in memory, 32 megs of space then available) and do redirects or indeed turn it into a DS code flash cart (GBA slot methods were how things were first done) but let's not go there.
Anyway I don't know what this does and pokemon being involved means I care even less but most hacks I see on that front are rather more change happy than some others (nice GUI tools means fairly large changes to a lot of things).