I think the goal for the ExS player is to have Jedza2 "fully-loaded" before she activates on turn 1, which is to say, she will have 3 life tokens and Focus +2. Depending on how you build your crew and flip cards, you will find 2/3 life tokens and focus +1 to be the usual starting point, which is no bad thing as Jedza2 could focus herself if their aren't enough markers/enemy isn't close enough to launch Dredge Up attacks.
Ways to get Life tokens:
Grave Goo regen (guaranteed)
Winston's Dirigible ride with on a seeker model. Needs a 6 but Fortune's favour helps as does Price of Progress
Lamplighter's Unnatural glow. Needs a 5, targeting a seeker model (Jedza2 is my go-to)
Sophie's Candelight. Needs a 6
Kurgan's Mudslide. Needs a 6+
Jedza2 at full health can also "refund" a life token via Death Touch killing a model.
You could also include Yaksha and the Hopeful Prospect here, but these are not options I have explored.
Ways to get focus:
Sophie's grab from the pack. Needs a 6
Effigy's galvanize trigger. You need to attack something within 3" of Jedza/Jedza herself and have a . It will set something on fire, but the effigy can assist to put that out.
Tannebaum's Haphazard topography. Needs a marker and 6+
Jedza can focus for an action.
With a Hopeful prospect, Jedza could also gain focus +1 when killing something.
My core will be Winston, the Effigy (with upgrade) and a Lamplighter. I do often find a place for Tannenbaum, even if I think the Haphazard topography is not a reliable source of focus I find cleaning out Jedza's deck (Notes) for turn 2 a useful alternative. Depending on the game/board/opposing faction I'll then add the Kurgan/Vatagi as I think I need.