FO Full Zeta Squad -- Who/When to replace?

Among other things, Foes tm gain is what really sets him apart. He can often attack twice. If he uses his special and kills a character he gains 80% tm. If that hit was also a crit, he gets another 20% tm from krus lead, meaning he’s back at 100% tm. Since he’s pretty much always going to have advantage, he’s always going to crit. Even if the attack doesn’t kill someone but it crits, he gets 60% back, 40% from the skill and 20% from kru lead. This is not to mention he also gives 10% tm to other fo when he crits. Oh yah he also dispels and removes tm. He’s so much better than fotp it’s not even funny. Tankier than fotp too.