Bastion is a great option for awakening but he is also available in Titan crystals.
I’d go with Shocker, although my Shocker is R3 and my Jack is R4. But I wouldn’t spend a gem on Jack.
I feel Shocker, with an awakening and sigs, literally lessens the time of his fights with each sig you invest
Bastion, not a big fan. Prowesses and regen in mutants is kinda in the past. Fury boost is nice, however? But he’s at R3 and low sig, and I don’t see that changing soon. But if AW is your thing, he’s quite versatile.
I waited a LONG time for Peni’s natural dupe to R3 her.
My duped Guardian is still at R1.
i just got jack and bastion. they are fun to play but i've only used them a handful of times so far. i play BG at the beginning of the season to rank as diamond or platinum then i drop off until the new season starts. lately i've just been doing the monthly EQ. i got a little burned out getting valiant but i'll have to go back to story mode soon. my most used tech champ has been Peni, but i wasn't sure if her dup was necessary.