If ur going to give it to another class.
Rogue. Is the only qualifer for this.
BL cant exist on any class with access to CR by blizzards rules.
Well blizzard have stated, classes with CR cant also have BL and vice versa, so:
Demon hunter
Rogue
Warrior
Priest
Of all these classes, the only classes to lack a group buff
Are
Demonhunter
Rogue.
So yeah, rogue and demon hunter, by blizzards ruling would be the highest qualifers for this change.
Given rogues just lost their unique aspect, given mage inherited group invis, id say the fairest choice would be Rogue, given tbe fact DHs bring a unique debuff and rogues now bring 0 unique features.
Priest already brings, Mass dispell, a unique buff, PI, aswell as a answer to every affix in the game
While warrior and rogues bring nothing including flaws to dealing with affixs, hence why its a top meta choice.
Why would u make priest even more meta, while 2 classes exist in desperate need of something to heighten their demand.
However:
If we gonna hand out BL like candy, i think warlock portals, hearthstones also need to be spread out.
Mages for portals, paladins for hearthstones.
Aswell as arcane mages mana gems should be handsble out to work like innervate