I guess one way to gain some insight in to this is... Since China has already passed simlar laws (at least in mandatory loot box odd rates being posted) asking if anyone from MTGS is from China and plays MTGO and if the laws have impacted their experence at all.
The odds of pulling magic cards isn't currently hidden, so being forced to tell you the odds wouldn't change anything. The information is already known.
White God is very underwhelming. To keep it one line it would be better to just prevent all of the damage to not leave open disappointing loopholes. 6WWW, like Blazing Archon 7/7
Blue God needs a specific point where it refills you. Or go the same route of something like Null Profusion. It makes more sense to not feed from discard effects 6UUU 4/8
Black God, a tame yet still insane ability.3BBB 5/5
Red God keeping to a single simple ability this is unprintable. No mana cost and negative stats, make it too much work to bother.
Green God, I've never thought Megantic Sliver was particularly strong. 3GGG 6/6
Not at the same 2. If it cost the three colors it was as phytexian mana it might be possible, or you would need a limiter on when you could cast the spell, like only your turn or requiring t so you can't get more than one spell a turn cycle.
Its mana cost and cost reduction ability seem at odds with one another. Its completely unrealistic to every pay full price for this because by getting that much mana it will meet its reduction requirement. Also the cost reduction should be something more red rather than a randomly chosen number of permanents.
A bit of clarification, Sower doesn't have a death trigger, it has an ability with a stated duration. The result isn't any different, both creatures get -2/-2 at the same time and die at the same time.
Temporal Portal is too cheap, look at every other seal or seal like effect, they are the same or higher cost for their effect while yours is lower.
For the dragon, if you put the life gain first then the draw you can clean up the wording. I'm personally afraid of such engines and would put a cost on the sacrifice, either 1 or t. Though it may be overly cautious.
You activate inkmoth first making it a flying infect creature, then Nissan to make it a 5/5. If you do it the other way you will only have a normal inkmoth until the end of your turn.
Each ability overwrites the p/t, type and subtype of the other ability because they both set to specific values. Added abilities are typically not overwritten but simply added.
Because you are getting them from anywhere it feels like it should be BU and possibly an artifact, to open it to more answers. To keep it UR it should only get instant and sorcerys that resolve or are countered. Its hard to gauge how strong this is, depending on where it actually falls on strength you could change it so the ability to cast the spells is part of the card and not granted by the exile ability.
It is importamt that the coat of arms is giving the buff directly and not giving an ability that then buffs the creatures. A coat of arms under the control of an emperor will effect themselves and all 4 generals. It will only count the creatures within this range. The enemy generals and emperor can not influence the Coat of arms but the generals are influenced by it. The enemy emperors creatures are not counted towards the benefit to the Coat of arms. Everyone will see the enhanced creatures, there doesn't exist multiple gamestates that the different players have access to.
Range is used to determine what you can affect, not what affects you. So everything an emperor does can effect enemy generals, but enemy generals can't effect the emperor.
That's a rather hefty tax on such a cheap body. Without letting you cast the spells that are mistakenly eaten by them it would probably be a fine card. The ability only really punishes misplays anyway so it might be favorable to drop it altogether to keep balance and reduce the punishment for misplays. It's a very narrow hate bear, would probably be better costing 2 and taxing 2 so it can more easily get under the counter wall.
If a single event triggers the abilities multiple times, each separate trigger is waiting for the full resolution if said event before any go on the stack. Because you control all if them you choose the order they are put on the stack, each one is put on the stack and it's target is chosen before the next one goes on the stack. So you will know what target an opponent has chosen before the next ability goes on the stack.
Transcend might want a subtype to help tie them together, other than that the problem with the mechanic is how costly cards will have to be due to the value of getting the creature then the enchantment. Look at bestow cards, transcend cards will usually have to cost as much as bestowing did. So the cards will look unattractive. Your card should cost a minimum 5 but would probably be pushed to 6 with a slightly larger body.
Disperse isn't the type of ability you want to do anywhere near enough to warrant a keyword. Also being any color makes it a color pie problem in every color.
Focus is interesting but considering the value of +1/+1 counters it would probably produce unappealing cards. Look at outlast cards to seethe cost of regularly adding +1/+1 counters, it's a similar choice, attack/block or gain counters, focus just has a way of losing them which could help with the cost. Also unless the goal is tons of feel bad moments the counters should be removed during clean up rather than the endstep so they don't die from the damage they took earlier.
By the way, I wonder if we'll ever see that rumored change in the redirection rule.
Its not really a rumored change, its a confirmed change; just not until later. When later is, is vague, but we know it has happened on the digital product so when that is officially released the change should have already happened or be about to happen. Considering they work two+ years in the future it wouldn't be surprising to see the change two years after we found out about it.
Blue God needs a specific point where it refills you. Or go the same route of something like Null Profusion. It makes more sense to not feed from discard effects 6UUU 4/8
Black God, a tame yet still insane ability.3BBB 5/5
Red God keeping to a single simple ability this is unprintable. No mana cost and negative stats, make it too much work to bother.
Green God, I've never thought Megantic Sliver was particularly strong. 3GGG 6/6
For the dragon, if you put the life gain first then the draw you can clean up the wording. I'm personally afraid of such engines and would put a cost on the sacrifice, either 1 or t. Though it may be overly cautious.
Each ability overwrites the p/t, type and subtype of the other ability because they both set to specific values. Added abilities are typically not overwritten but simply added.
Range is used to determine what you can affect, not what affects you. So everything an emperor does can effect enemy generals, but enemy generals can't effect the emperor.
Disperse isn't the type of ability you want to do anywhere near enough to warrant a keyword. Also being any color makes it a color pie problem in every color.
Focus is interesting but considering the value of +1/+1 counters it would probably produce unappealing cards. Look at outlast cards to seethe cost of regularly adding +1/+1 counters, it's a similar choice, attack/block or gain counters, focus just has a way of losing them which could help with the cost. Also unless the goal is tons of feel bad moments the counters should be removed during clean up rather than the endstep so they don't die from the damage they took earlier.