Alright. Health is pretty bad for a stage 1 with no stage 2. Retreat is average. Resists nothing really (Garchomp I guess?), but I guess its better than nothing. Weakness is not too bad, Dark isn't huge or anything.
Crash chant isn't really useful. I mean you can only have one TM/pokétool attached to a pokémon at a time, right? So I don't see it doing any notable damage. Most pokétools do their job the turn you use them. Memory Berry was re-released in the new Japanese set, so maybe it could be used as a counter to Charizard? I'm not sure, seems kind of useless to me.
Horror Chant is pretty good. Its like Dusknoir or... Palkia Lv. X or Palkia G Lv. X or something? Anyway, the damage is not great but you could catch your opponent by surprise, if like me, they didn't even know this card existed when you play Misdreavious =P