I got it for my iPad.
So I generate a random number and then my characters attack? I like how it has a mix of obscure characters in there, but the character models could be better...
I thought the characters were quite well done considering their animations and how many of them there are.
Combat is somewhat deeper than it seems at first glance (not unlike DeNA's other offering, FF Record Keeper, which seemed braindead to me at first). Each bot has five possible values for its damage, which are rolled randomly. However, you can affect that roll with several factors (there's a skill, out of four you can take into battle, that allows you to reroll one bot, while another rerolls all of them). Aside for that, you are free to transform them before attacking, which changes their characteristics, from their five attack values, to passive abilities (ex. add X to all your bot's attacks, or add Y to their defense, or do less damage but hit all enemies). A particularly important one is blue (first attack) numbers, which are added to decide who attacks first (ties are broken with a coin toss). This is so important that having a couple units with blue attacks in one of their modes (typically planes), and prioritizing them for rerolls, is quite important in getting the upper hand.
The most important factor in victory, I've seen, is the focus / jammer game. One of the skills that you can take is focus: it makes all your bots attack the same enemy unit that turn. This is immensely poweful, of course, it allows you to thin enemy numbers very quickly. So, there's another skill called jammer, that counters focus, making it so each bot targets a random enemy, like normal. However, there is a focus level 2, which ignores jammer. The thing is that it consumes two skill points out of the three you are given each round, severely limiting your rerolls and direct damage skills. Finally, there's a jammer level 2, which counters all levels of focus plus a seldom-used taunt-like skill. This too uses two points.
If you can guess that an enemy won't use focus, you can use that extra skill point on other things; conversely if you think they will use jammer, there's no use in casting focus (level 1 at least). You can also pick several units with attacks that hit all, bypassing the need for focusing, but it's quite risky (typically only the top 1 or 2 attacks of an unit will be multiattacks, if it has any, and a strong team armor defense can seriously slow you down).
Aside from that, some quick math is useful in determining who to focus in order to maximize casualties / kill the mos dangerous units with the fewest attacks: your bots always attack in the order you set them (except direct damage skills, which always go first, and multiattacks, which follow them), and always do the damage you rolled plus bonuses; you can also see if enemy units can provide team armor, but whether they actually do or not depends on the mode their user leaves them on. Whenever you manage to kill an enemy with an attack that deals exactly their remaining damage, you get a "perfect" coin / resource bonus.
My favorite part of the game is going against someone with a team much better than mine, and still beating them because they play "on auto" during the first turn and then it's too late for them to recover. The game just (like, two days ago) added a few Beast Wars units, I'm about to unlock Waspinator.