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

X-Factor Ability Slot

Fearmonger
Unstoppable Force
Reinforcement
Run Stuffer
Momentum Shift

Superstar Ability Slot 1

Pass Rush Elite
Edge Threat Elite
Homer
Clutch
Indoor Baller
Edge Threat
Tackle Supreme
Under Pressure
Enforcer
Secure Tackler
Reach Elite
Unfakeable
Finesse Specialist
Strip Specialist
Goal Line Stuff
Inside Stuff
No Outsiders
Out My Way
Lumberjack

Superstar Ability Slot 2

Pass Rush Elite
Edge Threat Elite
Homer
Clutch
Indoor Baller
Edge Threat
Tackle Supreme
Under Pressure
Enforcer
Secure Tackler
Reach Elite
Unfakeable
Finesse Specialist
Strip Specialist
Goal Line Stuff
Inside Stuff
No Outsiders
Out My Way
Lumberjack

Superstar Ability Slot 3

Pass Rush Elite
Edge Threat Elite
Homer
Clutch
Indoor Baller
Edge Threat
Tackle Supreme
Under Pressure
Enforcer
Secure Tackler
Reach Elite
Unfakeable
Finesse Specialist
Strip Specialist
Goal Line Stuff
Inside Stuff
No Outsiders
Out My Way
Lumberjack

Superstar Ability Slot 4

Pass Rush Elite
Edge Threat Elite
Homer
Clutch
Indoor Baller
Edge Threat
Tackle Supreme
Under Pressure
Enforcer
Secure Tackler
Reach Elite
Unfakeable
Finesse Specialist
Strip Specialist
Goal Line Stuff
Inside Stuff
No Outsiders
Out My Way
Lumberjack