canyou decrease the lifes dwell of bk? pls.?

lifes dwell of bk is really big! there normal hp when vit is 32k is 100+k and then +lifes dwell, that will turn them into a monster! imagine 5 strong and max SM cant kill a single BK?? and considering the damage rate of BK, its big, comparing to the damage of SM! "(were talking here bout max characters") since our Mana Shield is lowered i think even our damage islowered! can u do anything bout it? hopingly! thank you