Rottenmouth Viper incorrectly shows highlight indicating it is able to be cast.
In this image you can see that the Rottenmouth Viper (in hand, far right) is highlighted as if it can be cast. I suspect this is due to the fact that this treasure token is being double counted as both a mana source AND a permanent that can be sacrificed to reduce the cost. (Potentially because of the Name of the card being atypical)
2
votes
NinjaSIM37#82956
shared this idea
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bonsai#70698
commented
I reported on Rottenmouth Viper having the wrong casting cost back in 2024. https://feedback.wizards.com/forums/918667-mtg-arena-bugs-product-suggestions/suggestions/48955952-new-rottenmouth-viper-mana-discount-calculation-b
Has this bug re-surfaced or simply never been addressed? I stopped playing with/against this card for this sole reason.