BEST HORSEMAN vote..

It's weird, even though I have Apoc and most of the good mutant champs, I haven't experimented too much with making them all horseman yet. I've done Mags (honestly doesn’t benefit him as much as you'd think) Colossus and Domino. I should try out Cable, Sunspot, AA, Sabretooth, Havok, and a bunch of others at some point. My mutant roster (both 5 and 6*) is pretty nuts in comparison to any other class.

altavista

Which mutant champions benefit from +30% offensive AAR?
Aside from the obvious bleed/poison abilities, the other mutant abilities seem to be either more Defensive abilities (Colossus' armor up buff chance), unclear (Is Magneto's magnetism ability ofr -70% AAR considered offensive or defensive?), or there doesn't seem to be a chance of the ability not happening (Eg. Sunspot placing incinerate, Cable applying degenerate on heavy).

Masterpuff

Horsemen Wolvie.

Will3808

Which mutant champions benefit from +30% offensive AAR?
Aside from the obvious bleed/poison abilities, the other mutant abilities seem to be either more Defensive abilities (Colossus' armor up buff chance), unclear (Is Magneto's magnetism ability ofr -70% AAR considered offensive or defensive?), or there doesn't seem to be a chance of the ability not happening (Eg. Sunspot placing incinerate, Cable applying degenerate on heavy).

I’m pretty sure magnetism is considered all ability accuracy so I don’t know if it’s effected or not.

unknown

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10or_Strong

Wolverine, with Cable as #2 for me

dark_king_hyperion

only because I have omega and he's better than all the other horsemen already without the buff so its quite obvious its omega

Colinwhitworth69

I usually only use this for Magneto in Incursions, but I did it with X-23 once (also in Incursions), and she was really good. Not saying either one is the best.

Scopeotoe987

Wolverine.

brandinho

Another vote for Wolverine

Greekhit

I would go with Cable, since he turns from a bad champ to a very good one.
All others are already good champs, who just get better being horsemen.
In my opinion, Cable transforms completely and benefits the most by being a horseman 🙂

Realm_Of_Rah

Gambit

psp742

Prof X as a horseman of Apocalypse.. it boost a ramp up Prof X, making him OP in hands of an expert.

Cable just needs a bump in numbers to make him better.. what Apocalypse does is adds prowess to boost Cable attack and allows him to stack his degen.