Elder Dragons are perfect cards for the format that once was Elder Dragon Highlander. This way they will go full timmy instead of printing something small and sad like Aegar, the freezing flame
I'm quite certain that the Elder Dragon Founders will be mythic rares rather than uncommons.
They could be the Face Commanders of the new Commander decks. Maybe even a High Ranking Member and a Star Pupil for each of the colleges as well.
Agent of Treachery is great when their planeswalker is about to ult. Also, while the new Vorinclex, Monstrous Raider is good with planeswalkers, his second ability is good against them as well. Finally, as Cranky said earlier, planeswalkers fold to aggression.
There are many reasons to call fake, but the biggest one is that Vorinclex instantly allows planeswalkers to ult the moment they drop, in particular, the newly revealed Kaya. Maro said that was the biggest reason Doubling Season isn't getting reprinted in a standard set. I'm probably wrong though, considering all the over powered garbage they've been printing into standard this past year.
I think, due to the increasing cost of the game, that proxies should be normalized as being ok. I've been actively trying to get people to proxy expensive cards they are thinking about, but haven't purchased yet, as it would suck if the card wasn't as good as they hoped. I do understand why some people don't use them, though.
I could see them doing Comrade if it had a downside or two. That way, adding another color to a commander is a process you have to think about. I've seen various versions of adding one color to a commander that had starting hand size reduced by one, skip their first draw step, or increasing the casting cost of the commander by 1 of the new color. I've dabbled on the idea, that gave your opponents X thing where X was the number of times you cast the main commander that game.
tl;dr: I think it's possible to add a color if some downsides went with the decision.
I'm going to guess, and say that they might try making commanders that add a single color to other commanders. My fear, is that they will do it with out balancing out what adding another color offers, if such a concept even can.
What happens when you shoot your own doubling season with it
The color id severely limits which decks can do that (sorry, Atraxa players!)
Animar and 5c Superfriends decks will enjoy that, at least.
Lets not forget Riku of Two Reflections who can copy this, giving you a total of 11 Doubling Seasons, or 3 Doubling Seasons and 8 copies of anything on the board.
I have to whistle blow people saying jeskai and sultai
Those two color combos won’t happen
We got both of those color combos last year hard to believe they would do it twice in a row
Personally I want to remind that 4-color decks and probably a 5-color deck is not out of the equation
Apparently, there's going to be 4 Foil Commanders in each deck. The last time they did that was in 2016, 4 color decks with Partners. We might be getting Partners again, maybe even 4 Color decks.
My problem with buying from local stores is the fact that they ALL base their prices on those very same online retailers who do these profiteering tactics.
They could be the Face Commanders of the new Commander decks. Maybe even a High Ranking Member and a Star Pupil for each of the colleges as well.
tl;dr: I think it's possible to add a color if some downsides went with the decision.
Lets not forget Riku of Two Reflections who can copy this, giving you a total of 11 Doubling Seasons, or 3 Doubling Seasons and 8 copies of anything on the board.
Apparently, there's going to be 4 Foil Commanders in each deck. The last time they did that was in 2016, 4 color decks with Partners. We might be getting Partners again, maybe even 4 Color decks.