Then I must be playing him wrong?
I have none of those problems. If my shield goes down, I usually can put another up, or I must go back because my team has lost and the melee is able to reach me… or I choose a new place because a Marquis knows I am a stronger threat than him. But never have I ever gone “My shield is gone, I must halt my support.” I still have mines that pull or stun. I still have a special, often enough never used. I even have my primary attack… and generally, I am outperforming and carrying games because of it.
The shield is fine as is, as my counter argument. It is used to boost the speed of Toby’s slow (devastating) projectiles, with other things thrown into it, including enough damage protection to stop a Marquis from braining poor little Toby. To look at it as “only a shield” is to discredit it completely. It is those other reasons I have mentioned as to why the health is so low or it is so small to that shield: otherwise, Toby would be broken to hell. A massive wall that can tank damage up to half a Montana’s health, while granting impeccable bonuses? it’s not practical. A wall with a bit of health, easy enough counters with its size as a limit, while it gives such great buffs to its user? Sounds balanced to me.