Wait, you don’t get to use Flash cards unless you opponent has an attacking creature?!
Flash is a niche enough effect in MTGPQ without being further limited like this. You should definitely be able to use a Flash card on any opponent’s turn.
If you’re interested, I was wanting to play Masterful Replication during my opponent’s turn to give it semi-haste; i.e. to ensure it wouldn’t get shot before it attacked at least once.
There’s also one of the Ley Lines that gives a spell half it’s Mana if it’s drawn during your opponent’s turn. I hadn’t gotten around to trying to use it yet…
Forgot about that little detail for flash spells.
Yeah, they’ve always been like that. Triggers on each attacking creature, which is really annoying if you don’t want to cast something.
I assume that it was easier to program that than adding extra stops between steps to trigger Flash stuff.
I can’t imagine it would be THAT hard to change it so that flash triggers after your opponent finishes making matches rather than when a creature attacks. It’s really annoying right now if I don’t want to cast a spell with flash to dismiss the prompt for all three attacking creatures for all flash spells in hand.
Also it’s a bit annoying if I have two flash kill spells charged up in hand, if I kill the only attacking creature with the first spell that I’m still prompted to kill it again with the second flash spell.
I’m not a programmer, so I can’t be sure but I have a feeling the turn phases aren’t clearly separated like they are in paper Magic (or on Arena, for that matter). It might be that the first phase change is creatures attacking.
Then again, it used to be that all “on attack” triggers happened simultaneously before any creature attacked. I think it was Oktagon that removed that feature (to great complaint at the time, since a lot of cards became mostly useless as a result). I wonder if putting that back would resolve a lot of this issue since I assume Flash would then trigger once before any creature attacks (very similar to your solution, but it’ll be after your opponent casts stuff)
I always wish we could choose how to layer the stack when we have priority. So many matches could be more optimally played.
Probably would be too complicated for this game however.
I wish Flash had conditions. Such as “Flash: opponent casts a spell” or “Flash: one of your creatures dies.” That way the trigger could relate to the what the card actually does. Probably tricky to implement, but would make the cards a lot better
Be careful what you ask for. I have played a game on my phone that is 100% non multiplayer and doesn’t need cell or wifi. Has way more animations and actions at any given time than in mtgpq. My battery life and phone temp is great playing it.
So it is pretty clear that to keep hackers/cheaters from ruining your fun and their pocket books, the always communicating for everything in the game with the server is the culprit. Probably why wifi drops a little of the load from your phone and allows a bit better performance.
So everything extra the game has to do is just more stress on everything else. What may seem simple to us may be another slow down in reality.
Let flash trigger on attaking creatures (no changes there) and one time at the end of the opponents turn. We already had effects at the end of the round.
Nobody in the forums ever ask for more animations but for some reason we get them anyway 
Flash is a keyword they really haven’t thought through in MTGPQ.
If Flash appears on a card, it should be relevent in some way.
They really didn’t think through Flash at all when converting it into this game, did they?
The ‘pseudo haste’ effect is literally all you can achieve with any creature which doesn’t explicitly have an ability that affects combat. In paper mtg, of course, any creature you Flash into play can block; not so MTGPQ. And yet they give us no end of creatures that uselessly feature the keyword, like Chromium the Mutable, or Frilled Mystic.