Unable to cast spell that I had the correct mana for
In this game I was unable to cast Cornered by Black Mages even though I had 2 black mana available (1 colorless reduction from Artist's Talent) on my upkeep I had an untapped Swamp and Jagged Barrens that can produce black or red. However the game would not allow me to cast the spell as if I didn't have the correct mana for it, even though I did.
1
vote
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Rezzahan#77802
commented
You tried to cast a sorcery in your upkeep?
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wootwootpenguin#72909
commented
The turn in question was my final turn of the game, which was still won, but I am confused to why I could not use the spell I wanted to use instead.