I'm not really sure yet how I feel about the tournament-style system for playing matches once the drafting is done. You start the event as a team, but then you play it out as individuals? It feels a bit anti-climactic to have half the participants eliminated from the event after a single match, especially considering the heavy role RNG plays in many tournaments. You can win the tournament and never have to face the team who drafted the hardest matchup for your cards, or you could get your team paired off against the worst matchup in some or all of the games. As it stands now you can win the event and only face off against 3 of the other 7 teams total.
The system used here is almost identical to what War uses. In War there are teams with certain cards. Players fight until their Vault becomes smaller and some players are left out (equivalent of players dropping out from Booster Draft tournament). Those players are still part of the team, and help their team win, even though they are not fighting the actual battles. The last team standing, wins.
But this is where things get different. In Booster Draft we need one "main" winner because only one person can get the reward code. This is why when one team is left (and there is more than 1 player on that team), those players basically disband the team and start fighting as individuals until we have winner.
In the end we will have one winning team with 4 players, and 1 individual winner from that team.
Sure, getting eliminated during round one might be anti-climactic, but it's only anti-climactic if you
lose. So don't lose. And even if you lose, you can still help with deckbuilding etc.
I chose tournament format over others because I dislike "point system" in an event like this. I find that to be too "e-sport" and very anti-climactic because the winner is usually known before the last round even starts. With tournaments, the pace is faster, and it's never over until the last match is over. Tournament are more like real fighting than counting points. I mean if we fight in some medieval battlefield and I bash you head in with a hammer, do I get a "point" for that?
But that being said, we can re-evaluate the battle system after the event is over. Core of the event is the drafting process, so whatever battle system it uses, is almost irrelevant.