Immobbeast is pretty usefull in 15-25 sized fights, though is mostly meelee oriented wich in fact cripples its viability due to being in a poke and push meta so sb is only usefull 50% of the time. That said boonbeast is prob one of the easiest and strongest solo roamers and could get more wanted in zerg play if scrapper superspeed gets nerfed bec of the broken dolyak stance. Immunity to soft CC, stability and dmg reduction that stacks on protection, giving it 1 - 1 * 0.66 dmg reduction instead of the usual 1 - 1 * 0.33 - 0.67 * 0.33 and making it even better than dwarf stance.