Any particular tools exciting you in particular with each of your picks?
Honestly the couple I named up there aren't even the ones I'm most worried about. Some of the character specific traits revealed so far are just flat out terrifying to think about.
Batman's is tossing electric batarangs that hit the opponent way after he tosses them so it sets up an assist situation mixup(safe mixup). Batman is already known to have a crazy amount of tools to mixup and crossup. This move has a cooldown though, just like an assist.
Flash could slow down time for a bit similar to Ammy and Joe from MvC3. This gives a huge time frame where you could just go for your dirtiest mixups. This move has a cooldown.
Sinestro charges up his little ball thing for a while but then basically gets Batman's batarangs but constantly out.... This opens up for obvious mixups for days.
These kinds of tools being in the game says SOOOOO much about how the game is going to end up playing out in a high level of play. The zoning/spacing characters look scary at first glance, but their traits are not nearly as scary as these I just named(Cyborg: health regain/Green Arrow: Switches arrows). It's going to be a really unforgiving and offensive game so thats why they felt like they had to give the zoners alot of tools to keep up.
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And mechanics-wise what I'm really digging about the game is the way the rounds and clash system work. Both players have 2 life bars. If one loses a lifebar, the other player still keeps his. That is so huge. That means that a comeback will be really tough if you begin to get your second lifebar mauled before you take off your opponents first life bar. To make things a pinch more forgiving they made it so each player gets a clash if they are on their second lifebar though. The way I see it, it looks like the way you'll gain meter is like MK where the person getting mauled builds more meter so that by your second health bar you will have the meter advantage for clash(thus giving you a true combo breaker if the opponent is raping you).
This game is just looking so solid competitively that I seriously am blown away. I know without a doubt that if it is done well and the community gives it a chance, that it will be the new big game on campus alongside SF4 and Marvel vs Capcom 3.