Reason - mono Montana, Robb Cr, Artus, , Mono Skeelz, Mono Jungo, Mono Roots, Mono Piranas Dreen, Miho, Quibik, Lena, Desomond, Mona, Tula, Benicio, Jean, T Gaank, Haakan, and ALOT more counter him.
When he was released, he was extremely overpowered. Then UR released a ton of overpowered cards (cards that took the place of older cards) and now he is fair. Please note i didn't include soft counters like monosential, or cards like Stella and Corrina, who can stand toe to toe for a couple of pills.
Without him, Berserk are currently one of the worst clans, next to La Junta, whom lack solid DR and Protection: Damage, but that is another thread entirely.
Spyke definitely deserves the ban, any card that people build a deck around (Spyke Askai kalinda Beeboy ect ect..) doesn't need to be in ELO , he is quite easily a game changer with his ability, simply being in your hand opponents are likely to over pill vs his looming threat, and even vs soa hes a solid 7 power.