Finale keyword says “a bonus if this spends all yoir remaining mana” I had multiple instances where I spend all my mana in the spell with finale and didn’t receive the bonus at all, I have ss if needed
Did the cards have a yellow outline before you played them? That’s the indicator for the Finale effect.
What spells did you use?
Which Finale card was it?
Was it a Warrior riff/verse card?
If so, the finale effect on those is “play your last riff”. This actually means “replay the last riff you played”. If you had not played a riff earlier in the game, that explains the issue.