Insane Dalaran Heist Tavern bug

Bug Report
1

paste.pics/5OTPD (polish version of the game)

I used the card called ‘Take a chance’ and it decreased the mana cost of a SPELL card “Multi-shot” instead of a minion card. Why?

2

See Dalaran Heist Tavern Problem - #2 by BigHugger-2468