Who is the best against 6.1.5 Crossbones (w/o Blade and Aegon)

Given my rosters’ limitation, tips and advices are highly appreciated.
I have few options in mind:
1. Corvus (r4 duped): I tried but I can only take out 30% of xbone’s health
2. GR (r4 duped): Didn’t try out, but wondering his usage at SP1
3. Ghost (r3 duped): I don’t have Wasp but I have hood.
4. Domino (r4 unduped): Didn’t try as I don’t have massacre for synergy. I have RHulk.
5. Sentinel (r3 unduped)
6. Nebula (r3 duped): Same as Sentinel. Didn’t try as both at r3 only
7. Iceman (r2 unduped): Recent pull only. I’m thinking to level him up and count on him
8. Quake (r3 duped): Not excel in her play style thus hesitated.
I have watched some videos / reddit posts yet still can’t figure out what to do. Thanks.
I have few options in mind:
1. Corvus (r4 duped): I tried but I can only take out 30% of xbone’s health
2. GR (r4 duped): Didn’t try out, but wondering his usage at SP1
3. Ghost (r3 duped): I don’t have Wasp but I have hood.
4. Domino (r4 unduped): Didn’t try as I don’t have massacre for synergy. I have RHulk.
5. Sentinel (r3 unduped)
6. Nebula (r3 duped): Same as Sentinel. Didn’t try as both at r3 only
7. Iceman (r2 unduped): Recent pull only. I’m thinking to level him up and count on him
8. Quake (r3 duped): Not excel in her play style thus hesitated.
I have watched some videos / reddit posts yet still can’t figure out what to do. Thanks.
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Comments
Ghost is best option and you dont need any sinergy. Dont use special attacks.
Corvus: Revive revive
Sentinel is an interesting option... double inmunity and can healblock (however quite based in rng in this fight).
An R4 Omega Red did it for me.