User blog comment:BlazingKey/The Honest Truth of the X1 "Trial"/@comment-27948655-20150223230537/@comment-27948655-20150224181711

Sadly, they will die soon. Mostly due to 7* and 6* units outclassing them in EVERY POSSIBLE WAY.

Ultor:Prep for buff remove and massive single target attacks. And massive single target attacks with fixed damage. Taunt is utterly useless, especially in raid. And his LS is completely outclassed by an upcoming unit WHOS FREE. Replacement:Grahdens 6*, with his dark and light for 4 turns and 6 BC for 3 turns on sbb and his 35% to all stats+15% reduction to dark and light ls, who needs ultors leader skill? Also Zergels ATTACK buff does the job good enough, so Ultors sbb ATTACK buff won't be seeing much use.

Tridon:Buff removes. Just.........buff removes. And his ls is decent but the aforementioned Grah 6* still wins over it. Replacement:Ivirisu (New dark unit 7 star in jp), while her leader skill isn't really that good, her UBB gives the entire team an angel idol buff, making shield worthless.

Hadaron:Meet low bc drop bosses like Zevalhua (Trial 5) and more. Also, unable to function in raid due to low damage and only 30 min to kill a raid boss. Replacement:Anything really.

Andaria:This unit sucks. 100%. Especially her leader skill. Replacement:Feeva, because her bb buffs Atk def and rec by 70%, her sbb buffs bc and HC droprate by 35% (along with a nice 36 hits), her UBB buffs Atk def and rec by 170%, and her ls is 50% bb gauge fill rate and 75% boost to bc drop during spark.