MTG Salvation

I have played a few drafts with my friends using the boosters from Amonkhet and Shadow Over Innistrad before, and also once Conspiracy 2. However I feel like opportunist will most likely win the FFA game. I always sit back and provoke my friends to fight against each other, pretend like I don't have removal and wait for my friends to use their resources, then when the time is right I have more than enough resources to crush them and win the game.

I know if I don't do so I can have much more fun and more fair to everyone, but I just want to ask, is there any way to prevent opportunism? Or the cube can be modified to reward the aggressive players and punish the passive players.

Is FFA free-for-all? We regularly draft my list 3 players, politics is a big part of it and usually one I have enjoyed. After a few games players start to realize not to be the one burning removal or countering every threat, its actually a fun balancing act, deciding if you should remove a threat or hope and opponent will have to.

The problem is agro suffers in multiplayer games, you cant really go balls-to-the-walls usually instead you have to make sure they have more reach than usual so they can shift into the midrange game to finish the game off, Purphoros, God of the Forge is good at this as your small agro creatures shock players on entry).

In multiplayer setting I've learned to pressure the player who is hitting land drops and keeping quiet with spare damage when i can; it avoids you getting locked into a fight with one person and stops that player banking on the long game.

There are a lot of multiplayer-focussed cubes, so I assume it's a playable format, yes. Use your google-fu to find some multiplayer cube managers out there and open up some discussion with them.

Abso-freaking-lutely, it's possible. I've been doing it for six years.
You can see my cube list in my sig, and there's actually a Multiplayer/EDH Cube thread in the Card & Archetype Discussion subforum (there's a link in my sig for that too, if you're feeling lazy).

I've specifically doctored my cube to remove passivity and reward aggression. If you're playing something along the lines of 5+ player FFA, you don't want to sit around for five hours after drafting, just because one guy drafted Stasis, Balance, Limited Resources, Armageddon, Grand Arbiter Augustin IV etc. etc. and has no way of actually winning. So I've limited the resets and control cards. And it works. Still plenty of different archetypes and ways of winning, and everyone still has a ball, but we get multiple games in in one night with the decks we've drafted.

I don't really like true free for all very much. Politicking is just thoroughly uninteresting to me as a game mechanic. (I tolerate playing those "find the spy" style board games at board game nights, but I don't really like them.)

However, I do enjoy multiplayer. In my playgroup we generally try to find a format that gives the game a bit of direction. We play star if we have 5 people, or 2HG or Emperor with 4 or 6. That keeps aggro viable as well.

I run a 720 card low powered cube specifically designed for FFA and usually play with 4 to 6 players.

In fact, we usually don't break out the cube unless we have a minimum of 4.

The key is politics, subterfuge and manipulation. Cards from the Commander sets are great for this.

Expect long games (1+ hours) with lots of late game bombs.

For large free-for-alls, my playgroup has decided to stick The Monarch in the middle of the table to speed things up, with it first going to whoever deals the first face damage in combat. Seems to really promote aggressive play in a format that can stall and last a long time.