Bug: Nightmare and mummified hand

[♥♥♥♥ Goblin]

If you use nightmare (power; add 3 copies of some card to hand next turn) on a card that is then affected by mummified hand (relic; when using a power, a random card cost is set to 0 for this turn only), the cards that are shown in the nightmare animation can be selected by mummified hand such as having the first card set to 0 and the other 2 have the default cost, but the base chosen card remains at its base cost (it isn't reduced to 0).

Example:
In hand you have nightmare and footwork (aka "F1").
You use nightmare on footwork and three footwork cards (aka F2, F3, F4) are shown in the nightmare animation. The first card (F2) is shown to have a 0 cost (effected by mummified hand), and F3/F4 cards have the normal cost of 1.
The base footwork card (F1) is uneffected by mummified hand and remains at a cost of 1.

Bug:
Mummified hand treats cards created by nightmare as "in hand cards". While this may be technically true, the relics power is wasted because the "0 cost" effect only lasts 1 turn and thus the copied card that was affected returns to its base cost the following turn.

Solutions:
1) Mummified hand should trigger before nightmare (or similar duplication cards).
2) Or Mummified hand doesn't effect cards duplicated by nightmare (or similar "store for next turn" mechanics/cards).
3) Or Mummified hand effects all the cards affected by nightmare including the base card (ie. in the example above, F1 to F4 would all be set to 0 cost).

[Sinsling]

So how is this playing out?

-play nightmare
-play a power
-cards held in nightmare's duplication status is effected instead of a card in hand?

[lordofdekingz]

not a bug, the card is copied with all its attributes, one of them being the cost (0), another one being the fact, that mummified hands effect only works until the end of the turn

[♥♥♥♥ Goblin]

Hmmm, I guess I made a mistake, doh. I incorrectly thought nightmare was a power but it is a skill, yet I witnessed one of the cards copied by nightmare during the animation being set to 0 as if mummified hand had affected it. (while the other 2 copies were clearly a cost of 1)

This occurred during the Sat/Sun (apr 7/8) daily, so it might be repeatable. I don't recall the exact circumstance as it occurred earlier in the run and I didn't make this post until the run ended.

IIRC, I had two cards in hand: nightmare and footwork; nightmare was previously affected by another power/mummified hand that turn and thus had a cost of 0. I played nightmare on a footwork which is when I saw what I assumed was the above bug, but it seems now that perhaps there is another bug altogether.

Perhaps you can test something out better than I can: when you use nightmare on a power, the power "disappears" from your hand during the nightmare animation and is put back in your hand after - perhaps this triggers mummified hand as if the power card was played?