Tier list are made by people who have not played the game long enough and base everything with trash gears and build. Im currently in top 100 arena and top 20 5v5. Most of tier list put albert and the other earth guy 4 star to the bottom of the list. And both are my top tier pvp units and above above average pve(you dont need 5 star units at all for pve contents) 4 star earth guy stuns you to oblivion and alberts kill your whole team with hammer and return damage. You need to build your units properly for them to be effective. My survival team is yanko (veda energy build for that entangle) and albert to deplete enemies stamina by blocking and spam stunning them (they will panic dodge most of the time which depletes their stamin) then its stun lock time