Mirurun is an interesting deck. Mirurun's gimmick consists of utilizing her opponent's spells in the trash and at times from the hand/deck. Of course, her main focus isn't using the spells but the bonus effect she gets
from using the spells. Overall on those regards, Mirurun makes a quite effective deck with the ability to banish SIGNIs quite easily and/or making her opponent discard their entire hand. However, due to the fact that she requires specific cards for her opponent to have in order to be useful, Mirurun can be classified as a hate deck, which is basically a deck meant to counter another deck specifically. In Mirurun's case, this specified deck is Piruluk, but she can also counter other Spell-heavy decks such as Hanayo 2-stop. On the other hand though, this also means that when she's fighting something that isn't Spell-heavy, or if the opponent plays smart and doesn't use any of his/her spells, she's next to useless.
Overall, Mirurun is very reliant on her opponent's cards to do what she does, but when she does it she does it decently well.
