While you’re at rebalancing... You should balance angiens burn along with it, angiens def aura (largely overpowered), fix antifreeze auras (that's right, none of the AF aura's work currently and if creatureboost became added without fixing this first a lot of people would feel cheated about buying rusts/reins), fix TS/SW aura (doesn't work at all), fix UP aura, fix moral aura (or add note of it's limitations) and as burns said make creatureboost/attackboost/morale also apply to stats put into the fight and not just creaturestat and token boost.
I'm not against making creatureboost added but ONLY doing that would just shift the combat system inballence from drachs to angiens (as they have been set up to "match" drachorns which is possible right now even...)
The entire combat system DOES need rebalancing but random changes will not help with this, if mur is willing to do the programming to fix certain issues and "balance things out" (shopcreats and tokens should still give advantage of course) we can (or you can) set up a group to carefully consider changes and their effects, not just shifts of the problem (an unwanted shift in this case, as from BP/rust/rein to angiens will make donations go down substantially I imagine)