Little mistake in card text: "contols" instead of "controls"
I agree that it's a bit too powerful.
already has many cards that profit from death effects, so I'd suggest that the trigger of the effect of this card either drains some
quanta or it reduces the HP of this creature so it can only be used once or twice (notice that its death might again activate some useful death effects like bone wall or bone yard).
So, my personal change would be: reduce cost to 4(unupped) and 6 (upped) and reduce stats to 4|2 (unupped) and 6|2 (or 6|3) upped. Or at least something similar.
Btw, I'm not that experienced with card balacing as I rarely hang out in the CIA section, so about that I might be totally wrong... However, I really like the mechanics of this card, it fits
well. Good job