The 7th year anniversary units are on another level.
Yes there have been busted units throughout the years, but these are just built different.
200% leader skill, huge passive boosts, passive crits, passive additionals, passive super effective, turn one guard all attacks, easy transformation; after transformation massively stack ATK and DEF (this means something stupid like ~200k def extra per SA), and also nullify enemy attacks passive evasion/counters and an active skill for ultimate damage.
They gave them literally everything + insane stats; these units completely trivialise any content they can be used in, so either there is some gargantuan level of difficulty coming, or they just thought fuck it.
Oh the banner units, broly and syn, are insane too, they seem to be better than 95% of DFE released so far.
This is going to put things in perspective for future EZAs, reaching a new level of busted upgrades.
Sweet animations too: