TriMage Bugged my game

i play the lacay that transforms a minion in one randomnly with 1 mana cost plus, that minion transformed into a Trimage and i had my spells plus 1 mana cost. the bug starts when my trimage died and my spell costs still had the cost plus 1, that issue never end until the match finish. i had a screen when the trimage was not on the field and my spells had the cost in red with the mana plus but i cant add image neither links