I'm not sure. It seems like the strongest line of attack against you is actually just huge critters and Walking Ballista/Ravager effects. Some combination of protection from removal and Krenko is likely the way to go.
Magus is for sure a non-bo with the mana bases of the best human decks from recent years (Storm's Humans that won in Spain spring to mind here.), but a couple questions spring to my mind at least.
Firstly, could you just jam a couple Magus into some version of Humans as a sort of uncounterable (off of Cavern), Armageddon-like effect to just end games where you have already played out a Thalia, into Mantis Rider, into Reflector Mage and then Magus is the cherry on top that never lets them replay the Smasher you just put back in their hand.... ? Maybe? I kinda doubt this would work myself... but maybe some slightly redder version of humans with Harsh Mentor is out there where Magus is a capstone sort of lock piece. The destroying your own manabase does seem like a problem though.
Assuming that Harsh Mentor is good, I actually think that something along these lines with 4 Magus, 4Harsh, and 2-4 Blood Moon might be pretty tough, since the opponent will be dealing with a Magus or a Harsh nearly all the time, and will be faces with crazy problems like having to try to remove Magus, so that a Flooded Strand can become not a Mountain, and instead become a fetchland that costs 3 life to use. If a second Harsh comes down, it now costs 5, and at that point shouldn't they just be in such an impossible situation that there is no getting out? I'm also optimistic about this angle, since Magus seems great against both Eldrazi (which I think is the worst matchup for Humans) and Mentor, while Harsh seems great against Shops. Now just add some number of Eidolons and you have multiple, on-color, mainboard answers for a huge chunk of the metagame. (56% of top 8 decks in the last year, going by mtgtop8)
@Khahan I just noticed that this was also stated in the release notes: "If you control multiple As Foretolds, you may cast one spell for each of them paying 0." I'm gonna try some decks with As Foretold+Ancestral visions to see how it fares. If it turn out to be only good enough as a "for fun" card then so be it, no harm in trying and for fun is also fun ; )
Does this have a home in (Paradoxical Outcome) Storm? I suppose it doesn't add to your storm count, but an uncounterable cantrip that can refuel your Academy seems pretty useful. Or is it too narrow to have an impact?
Minamo does the same thing but doesn't cost 3 and is uncounterable. Maybe in the "Academy" deck that's been posted before but I doubt in the current Paradoxical decks.
Minamo is legendary permanent only. This is any permanent. Minamo also doesn't cycle for for a draw if its not needed.
@evouga I agree this is probably unplayable. Instant Speed Braingeyser is better than Braingeyser, but this card is almost always just worse than Stroke of Genius. Stroke only has one U in it's casting cost, making it easier to cast off of lots of artifact mana, and it can be used on your opponent to end the game in decks like High Tide. This card can't do either.
There is a corner case where this card is good, though, and that's where you want to dig in your deck deeply and put a particular card in the yard. I could see Worldgorger Dragon considering this card, for example. Mana Drain into this in a Dragon deck might legit end the game, since you can draw protection and possibly Animate dead, then bin the Dragon. At the same time, EOT pay UU to bin my Dragon to set up a win next turn is not horrible in a pinch, either.
Now, all we need is for Dragon to be good again :)
Whether the cost is 2U or 1UU won't matter in 99% of the cases.
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