Cell is weak to the Future Saga Category. At the start, he will only reduce Damage from PHY Cards, but will get more Resistances as you go up until Level 20 , where he takes reduced Damage from PHY, STR, INT, and all Extreme class Cards.
The best Types to use are Super TEQ and Super AGL. For Future Saga Cards, the selection of available Cards is very limited, the list below has an example Team and some alternatives.
Awakened UR Resilient Will to Protect the Future - Trunks (Teen) (Future) Super TEQ
Trunks is the major star in this event. He buffs all “Future Saga” category and all Super class Cards which is everything players will want against Cell while also being a complete powerhouse by himself. If you have him, definitely use him.
Awakened LR Alternate Ending - Super Saiyan Trunks (Future) Super AGL
Even with only half his Passive available, and zero DEF bonus at all, this F2P LR is a juggernaut against STR Cell because he’s one of the only Super AGL Future Saga Cards, he gets the regular Stat advantage bonus on top of the extra category EZA bonus, making him hit very hard and take low damage even in high stages. Definitely worth bringing.
Awakened UR Bonds Beyond Time - Super Saiyan God SS Vegeta Super TEQ
Vegeta offers great support while also being able to dish out and take damage by himself, however, without his EZA he is better off in the bench this time.
Awakened UR Strength Beyond Gods - Super Saiyan God SS Vegito Super TEQ
Short and deadly fights like this aren’t really playing to Vegitos strength, but he’s still useable and can do some high Damage depending on your luck with the additional Super ATKs.
Awakened LR Apex of Supreme Saiyan Power - Super Saiyan 4 Goku Super AGL
AGL type and a complete powerhouse, this Goku will start taking a lot of Damage from Cell in the late levels but is totally worth it for his own Damage.
Awakened UR Unparalleled Super Saiyan - Super Saiyan 4 Vegeta Super AGL
Good partner for SSJ4 Goku, and a reliable Super AGL Card with high unconditional Buffs.
Some powerful Super AGL Cards are usually strong enough to clear up to stage 30, but they will take a lot of punishment from Cell attacks, so try to tank with Future Saga category Cards. Additionally, powerful Super TEQ Cards can also be used, but to a lesser degree of success because of Cells type, here are some examples:
Awakened UR Observance of Pride - Super Saiyan God SS Vegeta Super AGL
Awakened LR Awakened True Power - Super Saiyan Gohan (Youth) Super AGL
Awakened UR Mystery Super Technique - Super Saiyan 3 Goku Super AGL
Awakened LR Miracle-Calling Clash - Super Saiyan Gohan (Teen) & Super Saiyan Goten (Kid) Super TEQ
The introductory stages of this EZA are very easy, Cell has only 2 to 4 health bars, moderate Damage, and only resists PHY and, after stage 8, PHY and STR types, AGL teams can very easily defeat him.
Extreme Z Battle: Welcome to Hell Perfect Cell Stages 1 to 10
Cell will start bumping up his Health and Damage quickly here, and some unlucky Super ATKs might kill unaware teams. After stage 13, Cell gets resistance to INT types on top of PHY and STR. These levels are still perfectly doable with strong AGL teams, but mixing up some Future Saga category Cards is not a bad idea.
Extreme Z Battle: Welcome to Hell Perfect Cell
From now on Cell is very dangerous, with 7 to 8 health bars, and Super ATKs that might wipe a team if they hit the wrong target, he’s also completely resistant to Extreme types, so some adjustments to the AGL team might be needed for players that enjoy using villains. After stage 28, the battles can get particularly tricky for players that didn’t invest too much in the Hidden Potential system of their Cards. At least some Future Saga Cards are a must here to tank some of Cells Damage and dealing enough to beat him.
It’s recommended to try multiple times because sometimes it really is bad luck that Cell is Super Attacking the wrong Card.