hey
Ildun, in the bard battle, to win, you have to get 4 golden cards (after dandelion promote them) in the 2° row, that's the rule of the match.
Anyway, in the last battle in expert mode, i used an other tactic, because i wouldn't never think that the ai could use the comsume-machine card (you know what i'm talking about) without one of your unit on the board, wasting is deploy ability
so, my tactic to win is:
R1 - put mahakam defender on the board, ai puts is leader on the board. then use the mahakam guard let your opponent to consume it, then pass.
R2 - fight to win absolutly this round, play you leader as soon as possible, use cards with low power to absorb the consuming ability (don't strenghten them), and strenghten cards like an craite warriors. i won this round with 109 points vs 98 points. if u get to resurrect the mahakam defender, and strenghten it, you will have an easy R3. every card in this round is important.
R3 - use the sorceress. at this point, i was able to resurrect a 26 power an craite warrior, and get my leader to 27-28 power. with the mahakam defender, i ended this round with something around 75 points, and an "easy" win.
anyway, i think this is probably one of the most unfair battle i played in a card game. poor card choices, only a gold card, bad silver cards, and your opponent has 2 or 3 golden cards (one of them really OP), and lots of aggressive cards. without the possibility to mulligan cards, lots of you will have a bad time.