So they removed the perk system , they better introduce a newer system with match trigger situation instant of just stat boost , I have an idea in my mind so here it goes.
Bowling perks
1)New ball bowler (Movement and pace are increased for the first 8 overs in every format)
2)Death ball bowler (Pace and cutters increased in the last 6 overs)
3)Partnership breaker (More chance of getting a wicket if there is a partnership going on and not much effective if there is no partnership)
4)You can't hit me (Unable to score runs quickly against such type of bowler in the middle overs but will go for runs in the death)
5)Strike bowler (Will go for runs but can pickup wickets too)
6)Tailender speciailist (Will likely to pickup wickets of lower skill batsmen, will find it tough against higher skilled batters)
7)High stamina (Can bowl longer spells with consistent pace)
8)Hit or miss bowler (Stats increased or decreased by 30% at the start of the match)
Batting perks
1)New ball specialists (Batting skills boost in the first 8 overs)
2)Wall in the middle (Hard to get out in the middle overs but can easily get out when the ball is new and in the death overs)
3)Death hitter (Power game increased in the final overs)
4)Mentor (Increased batting partner batting skills until he is at the crease)
5)Finisher (More likely to finish the game while chasing (stats boost while chasing and stat reduced when batting first)
6)Hit and Miss player (Stats increased or decreased by 30% at the start of the match)
7)Spin basher (Power boost bonus while going aerial against spinners , Power reduced against pacers)
8)Pace basher (Power boost bonus while going aerial against pacers , Power reduced against spinners)
All these 8 perks can have 5 levels to increase or decrease their potency , so these perks are not just stats boost but they get triggered due to match situations.