Another thought I had, in addition to SE's vision example:

Job Ability: Urgent Plea
(Stores 1 charge per minute, up to 5)
Allows the Summoner to activate any Bloodpact:Ward, even if another avatar is currently active.
* Doubles the MP cost of the ward.
* The avatar will still appear graphically, temporarily, but will not have a real Pet-style presence in the battle.

There are probably a few technical hurdles to overcome with this idea due to the avatar not being physically present, such as targeting and range of the ward (I'd make the target be the center of the range) but it allows the Wards to be used more freely, while keeping the Rages separate, perhaps using the proposed ability in SE's vision statement to lower rage timers in exchange for higher costs.

Clearly the idea needs refining, but it has potential.