I find the positive effects far outweight the negative side effects since the negatives only affect By-Ulf. Usually I only need to fire By-Ulf once to decide the outcome of the match. On defense, I think By-Ulf firing once is also enough to stay alive buy time for flanks. I do agree that Grevle is probably an overall better offensive hero.
That’s interesting. I’ve never tried Shrubbear as flank.