Muthead
The Ability data below is for the maximum available upgrade tier.

X-Factor Ability Slot

Gambler
Pro Reads
Blitz Radar
Bazooka
Run & Gun
Fearless
Brick Wall

Superstar Ability Slot 1

Dashing Deadeye
Red Zone Deadeye
Roaming Deadeye
Long Range Deadeye
Last Ditch
Escape Artist
No-Look Deadeye
Sleight of Hand
Homer
Fastbreak
Safety Valve
Clutch
Anchored Extender
Agile Extender
Indoor Baller
Gunslinger
Identifier
Gutsy Scrambler
Gift-Wrapped
QB Playmaker

Superstar Ability Slot 2

Dashing Deadeye
Red Zone Deadeye
Roaming Deadeye
Long Range Deadeye
Last Ditch
Escape Artist
No-Look Deadeye
Sleight of Hand
Homer
Fastbreak
Safety Valve
Clutch
Anchored Extender
Agile Extender
Indoor Baller
Gunslinger
Identifier
Gutsy Scrambler
Gift-Wrapped
QB Playmaker

Superstar Ability Slot 3

Dashing Deadeye
Red Zone Deadeye
Roaming Deadeye
Long Range Deadeye
Last Ditch
Escape Artist
No-Look Deadeye
Sleight of Hand
Homer
Fastbreak
Safety Valve
Clutch
Anchored Extender
Agile Extender
Indoor Baller
Gunslinger
Identifier
Gutsy Scrambler
Gift-Wrapped
QB Playmaker

Superstar Ability Slot 4

Dashing Deadeye
Red Zone Deadeye
Roaming Deadeye
Long Range Deadeye
Last Ditch
Escape Artist
No-Look Deadeye
Sleight of Hand
Homer
Fastbreak
Safety Valve
Clutch
Anchored Extender
Agile Extender
Indoor Baller
Gunslinger
Identifier
Gutsy Scrambler
Gift-Wrapped
QB Playmaker