if tired Izo was able to take one of the CP0 even with 2 of them ganging up on him , then there is nothing to worry about. after one defeated Drake and the Apo flew because of the other i assumed they might be Yonko commander level, but now i am just disappointed about the level of X-drake and Apoo but seeing how the anime displayed X-Drake wanting Zoro to help against Apoo, and Zoro then just slashing him alone, maybe we can assume they are just Topi Robbo level nothing more even maybe weaker than Who's-Who and Sasaki after all.