Easy, change all the soloable mvps to something hardcore that asks a party that knows what they're making. It would make players understand better how mechanics work and would make competition appear in team vs team and not 1 vs 1 and nobody could just drop a mvp in others since they would need to start everything from zero and that would be boring as in bio 3 mvps

EQ and Hell's Judgment isn't even needed to make them harder if someone is thinking about that, there are easy ways to make that happen.
This would make challenges at pvm appear and would make every single char usable and not just a dual to get something done.
Everybody knows that the current mvps are too easy to kill and ask no skill or almost no team to kill.
ET? Can be done with 2 players doing double.
Giant Bapho? Same, 2 players doing double.
Satan? Can be done solo.
Berz? Easy done by 2 people.
Ifrit? Easy to solo.
Hibram? Can be done solo.
Heck, most of the stuff is to easy nowadays with the stuff available >_>
And this applies to pre-renewal and renewal. No changes were made except being easier to solo or to do mvps with a 2 man party.
Yes, it's fun to kill in a big party but if the players suck you end into having more problem getting people alive because everyone that dies just love to complain about being dead and need res then to get something done so yep, mvps need a change, there is a need of more party oriented things that can just start in that.
If BG changed to what is now[as in people prefer eAmod then the normal BG] why not a MVP MOD?
NOTE - Not saying that every mvp should be as bio 3 [about how they work and "hard" they are for new people in the game] but they could get a super change to be harder to kill, ask no hard stuff to kill and just players doing their jobs, mvp cards wouldn't be around that easy and would be something unique when someone would get their hands into one. I can probably record my edited GTB and editted Doppel if someone wants to get an idea about what I'm talking about.