i believe it will not be allowed, since things with off color kicker costs or alternate color costs are normally not allowed. The bringers are only allowed in a five color deck. Though as always, edh is a variant casual format, talk to your playgroup.
Would that still be the case if a card is hybrid costing?
Private Mod Note
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Predictions: Snapcaster will be a mythic in MM17
There will be no Tarmogoyf in MM17
Felidar Guardian won't be banned in the next B&R (March)
Amonkhet will include enemy colored fetchlands
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