It would have been REALLY nice to of known how they worked earlier so we could skill up the right dragon beforehand. Even now we still don't know the subtypes and subelements of the other three mechdragons.
Mecha Hadar is devil which is nice, except for the fact that devils already have a ton of other dark enhancers (cerberus, hera-ur, beelzebub, da luci, etc). He straight up loses to DA lucifer who has two row enhances, two skill boosts, and a 5 turn orb change cooldown (and his nuke is stronger lol) Also compared to Cerebus he has better stats but that's it. Cerebus has the advantage of being an attacker for Dmeta, D/D as opposed to D/R, lower potential active cooldown, slightly better awakenings, and has the same attack as Hadar so you aren't missing out there either. He is way better than Hera-Ur and Beelz at least.
If you don't compare him to others though he is nice for the fact that he is farmable and is oncolor for devils. He can work in RSonia team and Satan teams no problem, although Satan doesn't have access to an easy full board change like Sonia.
Mecha Canopus on the other hand is... God type, which is pretty much pointless for most green attribute teams. Melody is still better because it's actually balanced type for Zeus-Dios teams. I guess he works well with GSonia... and yeah pretty much just GSonia.
So yeah they're good if you have Sonias but if you already have Sonias then you probably have better options as well.
As for the other three, the light dragon is going to have to be physical to be any use (in like a tamadrapurin team rofl). Blue... also wants Physical because of BSonia. Red is completely useless since you already have Shiva as the primary red leader. I guess Attacker lets it on an EVA team or something lol.
They all also sorta work on heroic teams except not really because they just want more orb changers. Maybe the more starved ones can make use of them like Wukong.
