In any case i am afraid that Bone Dragon will stay the fire-when-ready-and-kill-stuff braindead troop it is.
I remember somewhere back the Devs stating they are very happy with BDs basic concept which sadly is exactely that, to fire whenever ready regardless of the situation, or the board constellation, fire-kill something everytime it is ready.
Reducing the produced skulls will hopefully make it less overwhelming but it won't make the troop any more fun to face.
Ironically the reason the Devs gave when they adjusted Sheggra was this: "The last of the Magic-based gem spammers, we thought that we might be able to leave Sheggra alone. Sadly, no. We would like casting Lava Strike to be all about picking the right time, and it had really gotten to the point where EVERY time was the right time. To compensate, we've reduced her spell cost a Little. "
Somehow this standard doesn't apply to Bone Dragon i guess, cause the basic concept of the troop means EVERY time is the right time...