Hey Pawel,
I've come up with a decent idea on how to improve game readability and dynamism of gameplay. The thing is: whenever a keyword is triggered (e.g. deploy, dying wish, order), a special animation plays over the card right before the actual effect triggers or in place.
For example, in Hearthstone, whenever a deathrattle is triggered, a skull with bones flies above the place where card had been before it "died". In old Final Fantasy games, heroes used to pulsate with different colors depending on their protection passives (e.g. mag dmg reduction, reflect, etc). Similarly to that, whenever a unit's dying wish/order/whatever is triggered, a special animation (identical to all abilities of a kind) could be triggered in Gwent. For example, a pair of clashing swords could appear when a duel is triggered; or a flying skull appearing right before dying wish occurs.
For new players, it's often hard to understand what triggered this or that damage/boost or why units suddenly burn (e.g. because of Manticore deathrattle). I believe, such "highlights" would help them, while also making battlefield more alive and dynamic.
Please take this idea with a grain of salt; I'm not a UX expert and Gwent team will design much better animations ideas than I'm suggesting here. But I think the concept is worth looking at, even if it's in the backlog somewhere along with the mobile version
Thank you for reading this far! I hope it will trigger a "spark" in Jason Slama's brain and he'll come up with the best implementation (or, well, the best conclusion on why this feature is not necessary). Have a lovely weekend!